131000320232320 has 128 divisors (see below), whose sum is σ = 390449006553600. Its totient is φ = 40831268628480.

The previous prime is 131000320232317. The next prime is 131000320232321. The reversal of 131000320232320 is 23232023000131.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×131000320232320² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 131000320232291 and 131000320232300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131000320232321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1329093580 + ... + 1329192139.

It is an arithmetic number, because the mean of its divisors is an integer number (3050382863700).

Almost surely, 2^{131000320232320} is an apocalyptic number.

131000320232320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131000320232320 is an abundant number, since it is smaller than the sum of its proper divisors (259448686321280).

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

131000320232320 is a wasteful number, since it uses less digits than its factorization.

131000320232320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658285756 (or 2658285744 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 131000320232320 its reverse (23232023000131), we get a palindrome (154232343232451).

The spelling of 131000320232320 in words is "one hundred thirty-one trillion, three hundred twenty million, two hundred thirty-two thousand, three hundred twenty".