342113531 has 2 divisors, whose sum is σ = 342113532. Its totient is φ = 342113530.

The previous prime is 342113521. The next prime is 342113533. The reversal of 342113531 is 135311243.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342113531 is a prime.

It is a super-2 number, since 2×342113531² = 234083336186575922, which contains 22 as substring.

Together with 342113533, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 342113497 and 342113506.

It is not a weakly prime, because it can be changed into another prime (342113533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171056765 + 171056766.

It is an arithmetic number, because the mean of its divisors is an integer number (171056766).

Almost surely, 2^342113531 is an apocalyptic number.

342113531 is a deficient number, since it is larger than the sum of its proper divisors (1).

342113531 is an equidigital number, since it uses as much as digits as its factorization.

342113531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 23.

The square root of 342113531 is about 18496.3112809014. The cubic root of 342113531 is about 699.3964396062.

Adding to 342113531 its reverse (135311243), we get a palindrome (477424774).

The spelling of 342113531 in words is "three hundred forty-two million, one hundred thirteen thousand, five hundred thirty-one".