345161880331 has 2 divisors, whose sum is σ = 345161880332. Its totient is φ = 345161880330.

The previous prime is 345161880313. The next prime is 345161880367. The reversal of 345161880331 is 133088161543.

Together with previous prime (345161880313) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 345161880331 - 2¹⁷ = 345161749259 is a prime.

It is a super-2 number, since 2×345161880331² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (345161880431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172580940165 + 172580940166.

It is an arithmetic number, because the mean of its divisors is an integer number (172580940166).

Almost surely, 2^345161880331 is an apocalyptic number.

345161880331 is a deficient number, since it is larger than the sum of its proper divisors (1).

345161880331 is an equidigital number, since it uses as much as digits as its factorization.

345161880331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 345161880331 in words is "three hundred forty-five billion, one hundred sixty-one million, eight hundred eighty thousand, three hundred thirty-one".