45502120331 has 4 divisors (see below), whose sum is σ = 46013380200. Its totient is φ = 44990860464.

The previous prime is 45502120319. The next prime is 45502120373. The reversal of 45502120331 is 13302120554.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13302120554 = 2 ⋅6651060277.

It is a cyclic number.

It is not a de Polignac number, because 45502120331 - 2⁶ = 45502120267 is a prime.

It is a super-3 number, since 3×45502120331³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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 45502120331.

It is not an unprimeable number, because it can be changed into a prime (45502120381) 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, 255629801 + ... + 255629978.

It is an arithmetic number, because the mean of its divisors is an integer number (11503345050).

Almost surely, 2^45502120331 is an apocalyptic number.

45502120331 is a deficient number, since it is larger than the sum of its proper divisors (511259869).

45502120331 is an equidigital number, since it uses as much as digits as its factorization.

45502120331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511259868.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 45502120331 its reverse (13302120554), we get a palindrome (58804240885).

The spelling of 45502120331 in words is "forty-five billion, five hundred two million, one hundred twenty thousand, three hundred thirty-one".