142313131 has 2 divisors, whose sum is σ = 142313132. Its totient is φ = 142313130.

The previous prime is 142313111. The next prime is 142313147. The reversal of 142313131 is 131313241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142313131 - 2⁵ = 142313099 is a prime.

It is a super-2 number, since 2×142313131² = 40506054510046322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142313099 and 142313108.

It is not a weakly prime, because it can be changed into another prime (142313111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71156565 + 71156566.

It is an arithmetic number, because the mean of its divisors is an integer number (71156566).

Almost surely, 2^142313131 is an apocalyptic number.

142313131 is a deficient number, since it is larger than the sum of its proper divisors (1).

142313131 is an equidigital number, since it uses as much as digits as its factorization.

142313131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 19.

The square root of 142313131 is about 11929.5067374976. The cubic root of 142313131 is about 522.0935459151.

Adding to 142313131 its reverse (131313241), we get a palindrome (273626372).

The spelling of 142313131 in words is "one hundred forty-two million, three hundred thirteen thousand, one hundred thirty-one".