131000320232 has 16 divisors (see below), whose sum is σ = 250851677760. Its totient is φ = 64106539504.

The previous prime is 131000320193. The next prime is 131000320259. The reversal of 131000320232 is 232023000131.

It is a super-2 number, since 2×131000320232² (a number of 23 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 131000320232.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174202178 + ... + 174202929.

It is an arithmetic number, because the mean of its divisors is an integer number (15678229860).

Almost surely, 2^131000320232 is an apocalyptic number.

It is an amenable number.

131000320232 is a deficient number, since it is larger than the sum of its proper divisors (119851357528).

131000320232 is a wasteful number, since it uses less digits than its factorization.

131000320232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348405160 (or 348405156 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 131000320232 its reverse (232023000131), we get a palindrome (363023320363).

The spelling of 131000320232 in words is "one hundred thirty-one billion, three hundred twenty thousand, two hundred thirty-two".