31506342234 has 16 divisors (see below), whose sum is σ = 63018696000. Its totient is φ = 10501112160.

The previous prime is 31506342191. The next prime is 31506342239. The reversal of 31506342234 is 43224360513.

It is a happy number.

It is a super-2 number, since 2×31506342234² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31506342195 and 31506342204.

It is not an unprimeable number, because it can be changed into a prime (31506342239) 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, 180859 + ... + 309390.

It is an arithmetic number, because the mean of its divisors is an integer number (3938668500).

Almost surely, 2^31506342234 is an apocalyptic number.

31506342234 is an abundant number, since it is smaller than the sum of its proper divisors (31512353766).

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

31506342234 is a wasteful number, since it uses less digits than its factorization.

31506342234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500965.

The product of its (nonzero) digits is 51840, while the sum is 33.

The spelling of 31506342234 in words is "thirty-one billion, five hundred six million, three hundred forty-two thousand, two hundred thirty-four".