142431323131 has 8 divisors (see below), whose sum is σ = 144250918704. Its totient is φ = 140621537280.

The previous prime is 142431323077. The next prime is 142431323137. The reversal of 142431323131 is 131323134241.

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 142431323131 - 2²¹ = 142429225979 is a prime.

It is a super-2 number, since 2×142431323131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142431323131.

It is not an unprimeable number, because it can be changed into a prime (142431323137) 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, 2423205 + ... + 2481286.

It is an arithmetic number, because the mean of its divisors is an integer number (18031364838).

Almost surely, 2^142431323131 is an apocalyptic number.

142431323131 is a deficient number, since it is larger than the sum of its proper divisors (1819595573).

142431323131 is a wasteful number, since it uses less digits than its factorization.

142431323131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4904861.

The product of its digits is 5184, while the sum is 28.

Adding to 142431323131 its reverse (131323134241), we get a palindrome (273754457372).

The spelling of 142431323131 in words is "one hundred forty-two billion, four hundred thirty-one million, three hundred twenty-three thousand, one hundred thirty-one".