20131321023210 has 32 divisors (see below), whose sum is σ = 48315298289472. Its totient is φ = 5368338069120.

The previous prime is 20131321023181. The next prime is 20131321023263. The reversal of 20131321023210 is 1232012313102.

It is a super-2 number, since 2×20131321023210² (a number of 27 digits) contains 22 as substring.

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, 15754317 + ... + 16984143.

It is an arithmetic number, because the mean of its divisors is an integer number (1509853071546).

Almost surely, 2^{20131321023210} is an apocalyptic number.

20131321023210 is an abundant number, since it is smaller than the sum of its proper divisors (28183977266262).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20131321023210 is a wasteful number, since it uses less digits than its factorization.

20131321023210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775478.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20131321023210 its reverse (1232012313102), we get a palindrome (21363333336312).

The spelling of 20131321023210 in words is "twenty trillion, one hundred thirty-one billion, three hundred twenty-one million, twenty-three thousand, two hundred ten".