20032120045 has 16 divisors (see below), whose sum is σ = 27491143680. Its totient is φ = 13727049984.

The previous prime is 20032120027. The next prime is 20032120049. The reversal of 20032120045 is 54002123002.

It is a cyclic number.

It is not a de Polignac number, because 20032120045 - 2⁷ = 20032119917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20032120049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140077 + ... + 244306.

It is an arithmetic number, because the mean of its divisors is an integer number (1718196480).

Almost surely, 2^20032120045 is an apocalyptic number.

It is an amenable number.

20032120045 is a deficient number, since it is larger than the sum of its proper divisors (7459023635).

20032120045 is a wasteful number, since it uses less digits than its factorization.

20032120045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385884.

The product of its (nonzero) digits is 480, while the sum is 19.

Adding to 20032120045 its reverse (54002123002), we get a palindrome (74034243047).

The spelling of 20032120045 in words is "twenty billion, thirty-two million, one hundred twenty thousand, forty-five".