31000032434 has 8 divisors (see below), whose sum is σ = 53142912768. Its totient is φ = 13285728180.

The previous prime is 31000032421. The next prime is 31000032449. The reversal of 31000032434 is 43423000013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×31000032434² (a number of 22 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 1107144002 + ... + 1107144029.

It is an arithmetic number, because the mean of its divisors is an integer number (6642864096).

Almost surely, 2^31000032434 is an apocalyptic number.

31000032434 is a deficient number, since it is larger than the sum of its proper divisors (22142880334).

31000032434 is a wasteful number, since it uses less digits than its factorization.

31000032434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2214288040.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 31000032434 its reverse (43423000013), we get a palindrome (74423032447).

The spelling of 31000032434 in words is "thirty-one billion, thirty-two thousand, four hundred thirty-four".