45042321213 has 32 divisors (see below), whose sum is σ = 66941347200. Its totient is φ = 29932996608.

The previous prime is 45042321197. The next prime is 45042321263. The reversal of 45042321213 is 31212324054.

45042321213 is a `hidden beast` number, since 4 + 5 + 0 + 423 + 21 + 213 = 666.

It is not a de Polignac number, because 45042321213 - 2⁴ = 45042321197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45042321263) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13027581 + ... + 13031037.

It is an arithmetic number, because the mean of its divisors is an integer number (2091917100).

Almost surely, 2^45042321213 is an apocalyptic number.

It is an amenable number.

45042321213 is a deficient number, since it is larger than the sum of its proper divisors (21899025987).

45042321213 is a wasteful number, since it uses less digits than its factorization.

45042321213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4858 (or 4852 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 45042321213 its reverse (31212324054), we get a palindrome (76254645267).

The spelling of 45042321213 in words is "forty-five billion, forty-two million, three hundred twenty-one thousand, two hundred thirteen".