21010131302 has 32 divisors (see below), whose sum is σ = 32506321248. Its totient is φ = 10180800000.

The previous prime is 21010131203. The next prime is 21010131313. The reversal of 21010131302 is 20313101012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2595902 + ... + 2603982.

It is an arithmetic number, because the mean of its divisors is an integer number (1015822539).

Almost surely, 2^21010131302 is an apocalyptic number.

21010131302 is a deficient number, since it is larger than the sum of its proper divisors (11496189946).

21010131302 is a wasteful number, since it uses less digits than its factorization.

21010131302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8456.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21010131302 its reverse (20313101012), we get a palindrome (41323232314).

The spelling of 21010131302 in words is "twenty-one billion, ten million, one hundred thirty-one thousand, three hundred two".