31204212132 has 12 divisors (see below), whose sum is σ = 72809828336. Its totient is φ = 10401404040.

The previous prime is 31204212101. The next prime is 31204212139. The reversal of 31204212132 is 23121240213.

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

It is a junction number, because it is equal to n+sod(n) for n = 31204212099 and 31204212108.

It is not an unprimeable number, because it can be changed into a prime (31204212139) 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, 1300175494 + ... + 1300175517.

Almost surely, 2^31204212132 is an apocalyptic number.

It is an amenable number.

31204212132 is an abundant number, since it is smaller than the sum of its proper divisors (41605616204).

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

31204212132 is a wasteful number, since it uses less digits than its factorization.

31204212132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2600351018 (or 2600351016 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31204212132 its reverse (23121240213), we get a palindrome (54325452345).

The spelling of 31204212132 in words is "thirty-one billion, two hundred four million, two hundred twelve thousand, one hundred thirty-two".