342118831 has 2 divisors, whose sum is σ = 342118832. Its totient is φ = 342118830.

The previous prime is 342118811. The next prime is 342118849. The reversal of 342118831 is 138811243.

It is a strong prime.

It is an emirp because it is prime and its reverse (138811243) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 342118831 - 2¹¹ = 342116783 is a prime.

It is a super-2 number, since 2×342118831² = 234090589049613122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 342118793 and 342118802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342118811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171059415 + 171059416.

It is an arithmetic number, because the mean of its divisors is an integer number (171059416).

Almost surely, 2^342118831 is an apocalyptic number.

342118831 is a deficient number, since it is larger than the sum of its proper divisors (1).

342118831 is an equidigital number, since it uses as much as digits as its factorization.

342118831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 31.

The square root of 342118831 is about 18496.4545521567. The cubic root of 342118831 is about 699.4000512552.

The spelling of 342118831 in words is "three hundred forty-two million, one hundred eighteen thousand, eight hundred thirty-one".