45102120512 has 14 divisors (see below), whose sum is σ = 89499520518. Its totient is φ = 22551060224.

The previous prime is 45102120499. The next prime is 45102120517. The reversal of 45102120512 is 21502120154.

It can be written as a sum of positive squares in only one way, i.e., 37320057856 + 7782062656 = 193184^2 + 88216^2 .

It is a super-2 number, since 2×45102120512² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45102120517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 352360253 + ... + 352360380.

Almost surely, 2^45102120512 is an apocalyptic number.

It is an amenable number.

45102120512 is a deficient number, since it is larger than the sum of its proper divisors (44397400006).

45102120512 is an equidigital number, since it uses as much as digits as its factorization.

45102120512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704720645 (or 704720635 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

Adding to 45102120512 its reverse (21502120154), we get a palindrome (66604240666).

The spelling of 45102120512 in words is "forty-five billion, one hundred two million, one hundred twenty thousand, five hundred twelve".