20213120310131 has 8 divisors (see below), whose sum is σ = 23210190960384. Its totient is φ = 17243420168520.

The previous prime is 20213120310127. The next prime is 20213120310167. The reversal of 20213120310131 is 13101302131202.

It is a happy number.

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

It is not a de Polignac number, because 20213120310131 - 2² = 20213120310127 is a prime.

It is a super-2 number, since 2×20213120310131² (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 (20213120310101) 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, 6842625575 + ... + 6842628528.

It is an arithmetic number, because the mean of its divisors is an integer number (2901273870048).

Almost surely, 2^{20213120310131} is an apocalyptic number.

20213120310131 is a deficient number, since it is larger than the sum of its proper divisors (2997070650253).

20213120310131 is a wasteful number, since it uses less digits than its factorization.

20213120310131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13685254321.

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

Adding to 20213120310131 its reverse (13101302131202), we get a palindrome (33314422441333).

The spelling of 20213120310131 in words is "twenty trillion, two hundred thirteen billion, one hundred twenty million, three hundred ten thousand, one hundred thirty-one".