42345454331 has 2 divisors, whose sum is σ = 42345454332. Its totient is φ = 42345454330.

The previous prime is 42345454321. The next prime is 42345454357. The reversal of 42345454331 is 13345454324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42345454331 - 2⁶ = 42345454267 is a prime.

It is a super-2 number, since 2×42345454331² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (42345454321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21172727165 + 21172727166.

It is an arithmetic number, because the mean of its divisors is an integer number (21172727166).

Almost surely, 2^42345454331 is an apocalyptic number.

42345454331 is a deficient number, since it is larger than the sum of its proper divisors (1).

42345454331 is an equidigital number, since it uses as much as digits as its factorization.

42345454331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 345600, while the sum is 38.

The spelling of 42345454331 in words is "forty-two billion, three hundred forty-five million, four hundred fifty-four thousand, three hundred thirty-one".