21302210031131 has 8 divisors (see below), whose sum is σ = 21470126913024. Its totient is φ = 21134296008000.

The previous prime is 21302210031119. The next prime is 21302210031149. The reversal of 21302210031131 is 13113001220312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21302210031131 - 2²² = 21302205836827 is a prime.

It is a super-2 number, since 2×21302210031131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21302210031101) 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, 15733001 + ... + 17033253.

It is an arithmetic number, because the mean of its divisors is an integer number (2683765864128).

Almost surely, 2^{21302210031131} is an apocalyptic number.

21302210031131 is a deficient number, since it is larger than the sum of its proper divisors (167916881893).

21302210031131 is a wasteful number, since it uses less digits than its factorization.

21302210031131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1429381.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 21302210031131 its reverse (13113001220312), we get a palindrome (34415211251443).

The spelling of 21302210031131 in words is "twenty-one trillion, three hundred two billion, two hundred ten million, thirty-one thousand, one hundred thirty-one".