342140310531 has 24 divisors (see below), whose sum is σ = 513618369264. Its totient is φ = 227598685920.

The previous prime is 342140310517. The next prime is 342140310569. The reversal of 342140310531 is 135013041243.

It is a happy number.

342140310531 is a `hidden beast` number, since 342 + 1 + 4 + 0 + 310 + 5 + 3 + 1 = 666.

It is not a de Polignac number, because 342140310531 - 2⁷ = 342140310403 is a prime.

It is a super-2 number, since 2×342140310531² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 342140310495 and 342140310504.

It is not an unprimeable number, because it can be changed into a prime (342140310581) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1415076 + ... + 1639121.

It is an arithmetic number, because the mean of its divisors is an integer number (21400765386).

Almost surely, 2^342140310531 is an apocalyptic number.

342140310531 is a deficient number, since it is larger than the sum of its proper divisors (171478058733).

342140310531 is an equidigital number, since it uses as much as digits as its factorization.

342140310531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3054673 (or 3054661 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 342140310531 its reverse (135013041243), we get a palindrome (477153351774).

The spelling of 342140310531 in words is "three hundred forty-two billion, one hundred forty million, three hundred ten thousand, five hundred thirty-one".