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10231212131000 = 2353719312481497
BaseRepresentation
bin1001010011100010001111…
…0000111100001010111000
31100020002112202122110211122
42110320203300330022320
52320112010301143000
633432053131244412
72104115655131630
oct224704360741270
940202482573748
1010231212131000
11329503a580203
121192a642a9708
13592a509c0763
1427529c6256c0
1512b20d626085
hex94e23c3c2b8

10231212131000 has 256 divisors, whose sum is σ = 29730331238400. Its totient is φ = 3216018816000.

The previous prime is 10231212130999. The next prime is 10231212131003. The reversal of 10231212131000 is 13121213201.

It is a super-2 number, since 2×102312121310002 (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10231212131000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10231212131003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2882252 + ... + 5363748.

It is an arithmetic number, because the mean of its divisors is an integer number (116134106400).

Almost surely, 210231212131000 is an apocalyptic number.

10231212131000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10231212131000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14865165619200).

10231212131000 is an abundant number, since it is smaller than the sum of its proper divisors (19499119107400).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10231212131000 is a wasteful number, since it uses less digits than its factorization.

10231212131000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2481575 (or 2481561 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 10231212131000 its reverse (13121213201), we get a palindrome (10244333344201).

The spelling of 10231212131000 in words is "ten trillion, two hundred thirty-one billion, two hundred twelve million, one hundred thirty-one thousand".