31120433231040 has 168 divisors, whose sum is σ = 107512873406640. Its totient is φ = 8262223509504.

The previous prime is 31120433231011. The next prime is 31120433231053. The reversal of 31120433231040 is 4013233402113.

It is a happy number.

31120433231040 is a `hidden beast` number, since 3 + 1 + 12 + 0 + 4 + 332 + 310 + 4 + 0 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 31120433230995 and 31120433231013.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23147355 + ... + 24454874.

Almost surely, 2^{31120433231040} is an apocalyptic number.

31120433231040 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31120433231040 is an abundant number, since it is smaller than the sum of its proper divisors (76392440175600).

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

31120433231040 is a wasteful number, since it uses less digits than its factorization.

31120433231040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47602479 (or 47602466 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 31120433231040 its reverse (4013233402113), we get a palindrome (35133666633153).

The spelling of 31120433231040 in words is "thirty-one trillion, one hundred twenty billion, four hundred thirty-three million, two hundred thirty-one thousand, forty".