45313221431 has 4 divisors (see below), whose sum is σ = 45314959200. Its totient is φ = 45311483664.

The previous prime is 45313221407. The next prime is 45313221463. The reversal of 45313221431 is 13412231354.

45313221431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45313221431 is a prime.

It is a super-2 number, since 2×45313221431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45313221394 and 45313221403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45313121431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 829166 + ... + 882123.

It is an arithmetic number, because the mean of its divisors is an integer number (11328739800).

Almost surely, 2^45313221431 is an apocalyptic number.

45313221431 is a deficient number, since it is larger than the sum of its proper divisors (1737769).

45313221431 is a wasteful number, since it uses less digits than its factorization.

45313221431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737768.

The product of its digits is 8640, while the sum is 29.

Adding to 45313221431 its reverse (13412231354), we get a palindrome (58725452785).

The spelling of 45313221431 in words is "forty-five billion, three hundred thirteen million, two hundred twenty-one thousand, four hundred thirty-one".