20142131 has 2 divisors, whose sum is σ = 20142132. Its totient is φ = 20142130.

The previous prime is 20142091. The next prime is 20142163. The reversal of 20142131 is 13124102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20142131 - 2¹⁴ = 20125747 is a prime.

It is a super-2 number, since 2×20142131² = 811410882442322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20147131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10071065 + 10071066.

It is an arithmetic number, because the mean of its divisors is an integer number (10071066).

Almost surely, 2^20142131 is an apocalyptic number.

20142131 is a deficient number, since it is larger than the sum of its proper divisors (1).

20142131 is an equidigital number, since it uses as much as digits as its factorization.

20142131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 20142131 is about 4487.9985516932. The cubic root of 20142131 is about 272.0832492799.

Adding to 20142131 its reverse (13124102), we get a palindrome (33266233).

The spelling of 20142131 in words is "twenty million, one hundred forty-two thousand, one hundred thirty-one".