21131012202302 has 16 divisors (see below), whose sum is σ = 31799721014352. Its totient is φ = 10531160640000.

The previous prime is 21131012202301. The next prime is 21131012202319. The reversal of 21131012202302 is 20320221013112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21131012202301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13097699 + ... + 14622302.

It is an arithmetic number, because the mean of its divisors is an integer number (1987482563397).

Almost surely, 2^{21131012202302} is an apocalyptic number.

21131012202302 is a deficient number, since it is larger than the sum of its proper divisors (10668708812050).

21131012202302 is a wasteful number, since it uses less digits than its factorization.

21131012202302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27721243.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21131012202302 its reverse (20320221013112), we get a palindrome (41451233215414).

The spelling of 21131012202302 in words is "twenty-one trillion, one hundred thirty-one billion, twelve million, two hundred two thousand, three hundred two".