20142131131 has 16 divisors (see below), whose sum is σ = 22205328768. Its totient is φ = 18191692800.

The previous prime is 20142131123. The next prime is 20142131143. The reversal of 20142131131 is 13113124102.

It is a cyclic number.

It is not a de Polignac number, because 20142131131 - 2³ = 20142131123 is a prime.

It is a super-2 number, since 2×20142131131² (a number of 21 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 = 20142131099 and 20142131108.

It is not an unprimeable number, because it can be changed into a prime (20142131101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194355 + ... + 279388.

It is an arithmetic number, because the mean of its divisors is an integer number (1387833048).

Almost surely, 2^20142131131 is an apocalyptic number.

20142131131 is a deficient number, since it is larger than the sum of its proper divisors (2063197637).

20142131131 is a wasteful number, since it uses less digits than its factorization.

20142131131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473862.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 20142131131 its reverse (13113124102), we get a palindrome (33255255233).

It can be divided in two parts, 2014 and 2131131, that added together give a triangular number (2133145 = T₂₀₆₅).

The spelling of 20142131131 in words is "twenty billion, one hundred forty-two million, one hundred thirty-one thousand, one hundred thirty-one".