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131021301330 = 2355127457929
BaseRepresentation
bin111101000000101111…
…0100110011001010010
3110112012002200201200000
41322001132212121102
54121312423120310
6140105041110430
712315554454153
oct1720136463122
9415162621600
10131021301330
1150625121a17
1221486928416
13c48065c54a
1464acd9d92a
15361c8514c0
hex1e817a6652

131021301330 has 192 divisors, whose sum is σ = 357217136640. Its totient is φ = 34550820864.

The previous prime is 131021301329. The next prime is 131021301343. The reversal of 131021301330 is 33103120131.

It is a happy number.

131021301330 is a `hidden beast` number, since 1 + 3 + 10 + 21 + 301 + 330 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 141034306 + ... + 141035234.

It is an arithmetic number, because the mean of its divisors is an integer number (1860505920).

Almost surely, 2131021301330 is an apocalyptic number.

131021301330 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 131021301330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178608568320).

131021301330 is an abundant number, since it is smaller than the sum of its proper divisors (226195835310).

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

131021301330 is a wasteful number, since it uses less digits than its factorization.

131021301330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535 (or 1523 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 131021301330 its reverse (33103120131), we get a palindrome (164124421461).

The spelling of 131021301330 in words is "one hundred thirty-one billion, twenty-one million, three hundred one thousand, three hundred thirty".