345303110052391 has 2 divisors, whose sum is σ = 345303110052392. Its totient is φ = 345303110052390.

The previous prime is 345303110052331. The next prime is 345303110052469. The reversal of 345303110052391 is 193250011303543.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 345303110052391 - 2⁴¹ = 343104086796839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345303110052331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172651555026195 + 172651555026196.

It is an arithmetic number, because the mean of its divisors is an integer number (172651555026196).

Almost surely, 2^{345303110052391} is an apocalyptic number.

345303110052391 is a deficient number, since it is larger than the sum of its proper divisors (1).

345303110052391 is an equidigital number, since it uses as much as digits as its factorization.

345303110052391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145800, while the sum is 40.

The spelling of 345303110052391 in words is "three hundred forty-five trillion, three hundred three billion, one hundred ten million, fifty-two thousand, three hundred ninety-one".