72120555050023 has 4 divisors (see below), whose sum is σ = 72246860751208. Its totient is φ = 71994249348840.

The previous prime is 72120555050021. The next prime is 72120555050051. The reversal of 72120555050023 is 32005055502127.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72120555050023 - 2¹ = 72120555050021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72120555050021) 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, 63152849736 + ... + 63152850877.

It is an arithmetic number, because the mean of its divisors is an integer number (18061715187802).

Almost surely, 2^{72120555050023} is an apocalyptic number.

72120555050023 is a deficient number, since it is larger than the sum of its proper divisors (126305701185).

72120555050023 is a wasteful number, since it uses less digits than its factorization.

72120555050023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126305701184.

The product of its (nonzero) digits is 105000, while the sum is 37.

The spelling of 72120555050023 in words is "seventy-two trillion, one hundred twenty billion, five hundred fifty-five million, fifty thousand, twenty-three".