320703747611431 has 16 divisors (see below), whose sum is σ = 343693193747904. Its totient is φ = 298468180353024.

The previous prime is 320703747611419. The next prime is 320703747611447. The reversal of 320703747611431 is 134116747307023.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-320703747611431 is a prime.

It is a super-2 number, since 2×320703747611431² (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 (320703747615431) 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, 306874021 + ... + 307917313.

It is an arithmetic number, because the mean of its divisors is an integer number (21480824609244).

Almost surely, 2^{320703747611431} is an apocalyptic number.

320703747611431 is a deficient number, since it is larger than the sum of its proper divisors (22989446136473).

320703747611431 is a wasteful number, since it uses less digits than its factorization.

320703747611431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1404570.

The product of its (nonzero) digits is 1778112, while the sum is 49.

The spelling of 320703747611431 in words is "three hundred twenty trillion, seven hundred three billion, seven hundred forty-seven million, six hundred eleven thousand, four hundred thirty-one".