31543121130152 has 16 divisors (see below), whose sum is σ = 62256160125600. Its totient is φ = 14941478430000.

The previous prime is 31543121130127. The next prime is 31543121130173. The reversal of 31543121130152 is 25103112134513.

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, 103760266724 + ... + 103760267027.

It is an arithmetic number, because the mean of its divisors is an integer number (3891010007850).

Almost surely, 2^{31543121130152} is an apocalyptic number.

It is an amenable number.

31543121130152 is a deficient number, since it is larger than the sum of its proper divisors (30713038995448).

31543121130152 is a wasteful number, since it uses less digits than its factorization.

31543121130152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207520533776 (or 207520533772 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

Adding to 31543121130152 its reverse (25103112134513), we get a palindrome (56646233264665).

The spelling of 31543121130152 in words is "thirty-one trillion, five hundred forty-three billion, one hundred twenty-one million, one hundred thirty thousand, one hundred fifty-two".