31191154132 has 24 divisors (see below), whose sum is σ = 55610408000. Its totient is φ = 15304614336.

The previous prime is 31191154123. The next prime is 31191154171. The reversal of 31191154132 is 23145119113.

It is a junction number, because it is equal to n+sod(n) for n = 31191154094 and 31191154103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210282 + ... + 326497.

Almost surely, 2^31191154132 is an apocalyptic number.

It is an amenable number.

31191154132 is a deficient number, since it is larger than the sum of its proper divisors (24419253868).

31191154132 is a wasteful number, since it uses less digits than its factorization.

31191154132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537055 (or 537053 counting only the distinct ones).

The product of its digits is 3240, while the sum is 31.

The spelling of 31191154132 in words is "thirty-one billion, one hundred ninety-one million, one hundred fifty-four thousand, one hundred thirty-two".