31264130532 has 12 divisors (see below), whose sum is σ = 72949637936. Its totient is φ = 10421376840.

The previous prime is 31264130519. The next prime is 31264130533. The reversal of 31264130532 is 23503146213.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 31264130532.

It is not an unprimeable number, because it can be changed into a prime (31264130533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1302672094 + ... + 1302672117.

Almost surely, 2^31264130532 is an apocalyptic number.

It is an amenable number.

31264130532 is an abundant number, since it is smaller than the sum of its proper divisors (41685507404).

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

31264130532 is a wasteful number, since it uses less digits than its factorization.

31264130532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2605344218 (or 2605344216 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 31264130532 its reverse (23503146213), we get a palindrome (54767276745).

The spelling of 31264130532 in words is "thirty-one billion, two hundred sixty-four million, one hundred thirty thousand, five hundred thirty-two".