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1213313103030 = 2357192314479137
BaseRepresentation
bin10001101001111111000…
…110001011010010110110
311021222202212122211001110
4101221333012023102312
5124334331123244110
62325215514335450
7153442013132340
oct21517706132266
94258685584043
101213313103030
11428621685486
1217719412a586
138a5517c4572
1442a206b8290
1521863888a20
hex11a7f18b4b6

1213313103030 has 256 divisors, whose sum is σ = 3658334699520. Its totient is φ = 251108149248.

The previous prime is 1213313103019. The next prime is 1213313103061. The reversal of 1213313103030 is 303013133121.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 1213313102988 and 1213313103006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 132786622 + ... + 132795758.

It is an arithmetic number, because the mean of its divisors is an integer number (14290369920).

Almost surely, 21213313103030 is an apocalyptic number.

1213313103030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213313103030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1829167349760).

1213313103030 is an abundant number, since it is smaller than the sum of its proper divisors (2445021596490).

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

1213313103030 is a wasteful number, since it uses less digits than its factorization.

1213313103030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10643.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 1213313103030 its reverse (303013133121), we get a palindrome (1516326236151).

The spelling of 1213313103030 in words is "one trillion, two hundred thirteen billion, three hundred thirteen million, one hundred three thousand, thirty".