142323131 has 2 divisors, whose sum is σ = 142323132. Its totient is φ = 142323130.

The previous prime is 142323119. The next prime is 142323143. The reversal of 142323131 is 131323241.

It is a balanced prime because it is at equal distance from previous prime (142323119) and next prime (142323143).

It is a cyclic number.

It is not a de Polignac number, because 142323131 - 2⁶ = 142323067 is a prime.

It is a super-2 number, since 2×142323131² = 40511747235286322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (142323101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71161565 + 71161566.

It is an arithmetic number, because the mean of its divisors is an integer number (71161566).

Almost surely, 2^142323131 is an apocalyptic number.

142323131 is a deficient number, since it is larger than the sum of its proper divisors (1).

142323131 is an equidigital number, since it uses as much as digits as its factorization.

142323131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 20.

The square root of 142323131 is about 11929.9258589482. The cubic root of 142323131 is about 522.1057743795.

Adding to 142323131 its reverse (131323241), we get a palindrome (273646372).

The spelling of 142323131 in words is "one hundred forty-two million, three hundred twenty-three thousand, one hundred thirty-one".