345433109321 has 2 divisors, whose sum is σ = 345433109322. Its totient is φ = 345433109320.

The previous prime is 345433109303. The next prime is 345433109347. The reversal of 345433109321 is 123901334543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206628430096 + 138804679225 = 454564^2 + 372565^2 .

It is a cyclic number.

It is not a de Polignac number, because 345433109321 - 2¹⁴ = 345433092937 is a prime.

It is not a weakly prime, because it can be changed into another prime (345433100321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172716554660 + 172716554661.

It is an arithmetic number, because the mean of its divisors is an integer number (172716554661).

Almost surely, 2^345433109321 is an apocalyptic number.

It is an amenable number.

345433109321 is a deficient number, since it is larger than the sum of its proper divisors (1).

345433109321 is an equidigital number, since it uses as much as digits as its factorization.

345433109321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 116640, while the sum is 38.

The spelling of 345433109321 in words is "three hundred forty-five billion, four hundred thirty-three million, one hundred nine thousand, three hundred twenty-one".