340744381931 has 2 divisors, whose sum is σ = 340744381932. Its totient is φ = 340744381930.

The previous prime is 340744381877. The next prime is 340744381951. The reversal of 340744381931 is 139183447043.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 340744381931 - 2¹⁴ = 340744365547 is a prime.

It is a super-2 number, since 2×340744381931² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (340744381951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170372190965 + 170372190966.

It is an arithmetic number, because the mean of its divisors is an integer number (170372190966).

Almost surely, 2^340744381931 is an apocalyptic number.

340744381931 is a deficient number, since it is larger than the sum of its proper divisors (1).

340744381931 is an equidigital number, since it uses as much as digits as its factorization.

340744381931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 870912, while the sum is 47.

The spelling of 340744381931 in words is "three hundred forty billion, seven hundred forty-four million, three hundred eighty-one thousand, nine hundred thirty-one".