20311342130131 has 8 divisors (see below), whose sum is σ = 23025003224720. Its totient is φ = 17762145344352.

The previous prime is 20311342130129. The next prime is 20311342130137. The reversal of 20311342130131 is 13103124311302.

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 20311342130131 - 2¹ = 20311342130129 is a prime.

It is a super-2 number, since 2×20311342130131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20311342130096 and 20311342130105.

It is not an unprimeable number, because it can be changed into a prime (20311342130137) 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, 41116076940 + ... + 41116077433.

It is an arithmetic number, because the mean of its divisors is an integer number (2878125403090).

Almost surely, 2^{20311342130131} is an apocalyptic number.

20311342130131 is a deficient number, since it is larger than the sum of its proper divisors (2713661094589).

20311342130131 is a wasteful number, since it uses less digits than its factorization.

20311342130131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82232154405.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 20311342130131 its reverse (13103124311302), we get a palindrome (33414466441433).

The spelling of 20311342130131 in words is "twenty trillion, three hundred eleven billion, three hundred forty-two million, one hundred thirty thousand, one hundred thirty-one".