31400021030232 has 32 divisors (see below), whose sum is σ = 78501241082880. Its totient is φ = 10466515209120.

The previous prime is 31400021030179. The next prime is 31400021030243. The reversal of 31400021030232 is 23203012000413.

It is a super-2 number, since 2×31400021030232² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31400021030199 and 31400021030208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8280588 + ... + 11461595.

It is an arithmetic number, because the mean of its divisors is an integer number (2453163783840).

Almost surely, 2^{31400021030232} is an apocalyptic number.

It is an amenable number.

31400021030232 is an abundant number, since it is smaller than the sum of its proper divisors (47101220052648).

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

31400021030232 is a wasteful number, since it uses less digits than its factorization.

31400021030232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19808463 (or 19808459 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 31400021030232 its reverse (23203012000413), we get a palindrome (54603033030645).

The spelling of 31400021030232 in words is "thirty-one trillion, four hundred billion, twenty-one million, thirty thousand, two hundred thirty-two".