31001442234 has 32 divisors (see below), whose sum is σ = 71088316416. Its totient is φ = 8829070320.

The previous prime is 31001442223. The next prime is 31001442253. The reversal of 31001442234 is 43224410013.

It is a super-2 number, since 2×31001442234² (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 15 ways as a sum of consecutive naturals, for example, 1173642 + ... + 1199765.

It is an arithmetic number, because the mean of its divisors is an integer number (2221509888).

Almost surely, 2^31001442234 is an apocalyptic number.

31001442234 is an abundant number, since it is smaller than the sum of its proper divisors (40086874182).

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

31001442234 is a wasteful number, since it uses less digits than its factorization.

31001442234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2373730.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 31001442234 its reverse (43224410013), we get a palindrome (74225852247).

The spelling of 31001442234 in words is "thirty-one billion, one million, four hundred forty-two thousand, two hundred thirty-four".