21131200131310 has 64 divisors (see below), whose sum is σ = 41099975932032. Its totient is φ = 7792523554816.

The previous prime is 21131200131299. The next prime is 21131200131323. The reversal of 21131200131310 is 1313100213112.

It is a super-2 number, since 2×21131200131310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3658599 + ... + 7459741.

It is an arithmetic number, because the mean of its divisors is an integer number (642187123938).

Almost surely, 2^{21131200131310} is an apocalyptic number.

21131200131310 is a deficient number, since it is larger than the sum of its proper divisors (19968775800722).

21131200131310 is a wasteful number, since it uses less digits than its factorization.

21131200131310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3801837.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 21131200131310 its reverse (1313100213112), we get a palindrome (22444300344422).

The spelling of 21131200131310 in words is "twenty-one trillion, one hundred thirty-one billion, two hundred million, one hundred thirty-one thousand, three hundred ten".