45434031121 has 4 divisors (see below), whose sum is σ = 45598053172. Its totient is φ = 45270009072.

The previous prime is 45434031109. The next prime is 45434031127. The reversal of 45434031121 is 12113043454.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12113043454 = 2 ⋅6056521727.

It can be written as a sum of positive squares in 2 ways, for example, as 21273681025 + 24160350096 = 145855^2 + 155436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45434031121 is a prime.

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 45434031121.

It is not an unprimeable number, because it can be changed into a prime (45434031127) 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, 82010610 + ... + 82011163.

It is an arithmetic number, because the mean of its divisors is an integer number (11399513293).

Almost surely, 2^45434031121 is an apocalyptic number.

It is an amenable number.

45434031121 is a deficient number, since it is larger than the sum of its proper divisors (164022051).

45434031121 is a wasteful number, since it uses less digits than its factorization.

45434031121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164022050.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 45434031121 its reverse (12113043454), we get a palindrome (57547074575).

The spelling of 45434031121 in words is "forty-five billion, four hundred thirty-four million, thirty-one thousand, one hundred twenty-one".