340121120332431 has 16 divisors (see below), whose sum is σ = 454003979824640. Its totient is φ = 226492937579520.

The previous prime is 340121120332387. The next prime is 340121120332447. The reversal of 340121120332431 is 134233021121043.

It is a de Polignac number, because none of the positive numbers 2^k-340121120332431 is a prime.

It is a super-2 number, since 2×340121120332431² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340121120332451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1010616 + ... + 26101026.

It is an arithmetic number, because the mean of its divisors is an integer number (28375248739040).

Almost surely, 2^{340121120332431} is an apocalyptic number.

340121120332431 is a deficient number, since it is larger than the sum of its proper divisors (113882859492209).

340121120332431 is a wasteful number, since it uses less digits than its factorization.

340121120332431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25095486.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 340121120332431 its reverse (134233021121043), we get a palindrome (474354141453474).

The spelling of 340121120332431 in words is "three hundred forty trillion, one hundred twenty-one billion, one hundred twenty million, three hundred thirty-two thousand, four hundred thirty-one".