213131331032 has 8 divisors (see below), whose sum is σ = 399621245700. Its totient is φ = 106565665512.

The previous prime is 213131331029. The next prime is 213131331041. The reversal of 213131331032 is 230133131312.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 213131330989 and 213131331007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13320708182 + ... + 13320708197.

Almost surely, 2^213131331032 is an apocalyptic number.

It is an amenable number.

213131331032 is a deficient number, since it is larger than the sum of its proper divisors (186489914668).

213131331032 is a wasteful number, since it uses less digits than its factorization.

213131331032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26641416385 (or 26641416381 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 213131331032 its reverse (230133131312), we get a palindrome (443264462344).

The spelling of 213131331032 in words is "two hundred thirteen billion, one hundred thirty-one million, three hundred thirty-one thousand, thirty-two".