45420511121 has 4 divisors (see below), whose sum is σ = 45478225392. Its totient is φ = 45362796852.

The previous prime is 45420511117. The next prime is 45420511127. The reversal of 45420511121 is 12111502454.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45420511121 - 2² = 45420511117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45420511127) 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, 28855955 + ... + 28857528.

It is an arithmetic number, because the mean of its divisors is an integer number (11369556348).

Almost surely, 2^45420511121 is an apocalyptic number.

It is an amenable number.

45420511121 is a deficient number, since it is larger than the sum of its proper divisors (57714271).

45420511121 is an equidigital number, since it uses as much as digits as its factorization.

45420511121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57714270.

The product of its (nonzero) digits is 1600, while the sum is 26.

The spelling of 45420511121 in words is "forty-five billion, four hundred twenty million, five hundred eleven thousand, one hundred twenty-one".