31303434032 has 40 divisors (see below), whose sum is σ = 65564282784. Its totient is φ = 14392779264.

The previous prime is 31303434023. The next prime is 31303434037. The reversal of 31303434032 is 23043430313.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 31303433992 and 31303434010.

It is not an unprimeable number, because it can be changed into a prime (31303434037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231413 + ... + 340820.

Almost surely, 2^31303434032 is an apocalyptic number.

It is an amenable number.

31303434032 is an abundant number, since it is smaller than the sum of its proper divisors (34260848752).

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

31303434032 is a wasteful number, since it uses less digits than its factorization.

31303434032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572517 (or 572511 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 31303434032 its reverse (23043430313), we get a palindrome (54346864345).

The spelling of 31303434032 in words is "thirty-one billion, three hundred three million, four hundred thirty-four thousand, thirty-two".