3213131530 has 16 divisors (see below), whose sum is σ = 6609870720. Its totient is φ = 1101645072.

The previous prime is 3213131503. The next prime is 3213131543. The reversal of 3213131530 is 351313123.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22950870 + ... + 22951009.

It is an arithmetic number, because the mean of its divisors is an integer number (413116920).

Almost surely, 2^3213131530 is an apocalyptic number.

3213131530 is an abundant number, since it is smaller than the sum of its proper divisors (3396739190).

3213131530 is a wasteful number, since it uses less digits than its factorization.

3213131530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45901893.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 3213131530 is about 56684.4910888331. The cubic root of 3213131530 is about 1475.6255555936.

Adding to 3213131530 its reverse (351313123), we get a palindrome (3564444653).

The spelling of 3213131530 in words is "three billion, two hundred thirteen million, one hundred thirty-one thousand, five hundred thirty".