45203231431 has 4 divisors (see below), whose sum is σ = 45207912312. Its totient is φ = 45198550552.

The previous prime is 45203231413. The next prime is 45203231459. The reversal of 45203231431 is 13413230254.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 45203231431 - 2¹³ = 45203223239 is a prime.

It is a super-2 number, since 2×45203231431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45203231431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45203241431) 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, 2325925 + ... + 2345278.

It is an arithmetic number, because the mean of its divisors is an integer number (11301978078).

Almost surely, 2^45203231431 is an apocalyptic number.

45203231431 is a deficient number, since it is larger than the sum of its proper divisors (4680881).

45203231431 is an equidigital number, since it uses as much as digits as its factorization.

45203231431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4680880.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 45203231431 its reverse (13413230254), we get a palindrome (58616461685).

The spelling of 45203231431 in words is "forty-five billion, two hundred three million, two hundred thirty-one thousand, four hundred thirty-one".