72450110231 has 4 divisors (see below), whose sum is σ = 72455211192. Its totient is φ = 72445009272.

The previous prime is 72450110209. The next prime is 72450110233. The reversal of 72450110231 is 13201105427.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13201105427 = 149 ⋅88598023.

It is a cyclic number.

It is not a de Polignac number, because 72450110231 - 2²⁶ = 72383001367 is a prime.

It is a super-2 number, since 2×72450110231² (a number of 23 digits) contains 22 as substring.

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 72450110231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72450110233) 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, 2529116 + ... + 2557601.

It is an arithmetic number, because the mean of its divisors is an integer number (18113802798).

Almost surely, 2^72450110231 is an apocalyptic number.

72450110231 is a deficient number, since it is larger than the sum of its proper divisors (5100961).

72450110231 is a wasteful number, since it uses less digits than its factorization.

72450110231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5100960.

The product of its (nonzero) digits is 1680, while the sum is 26.

Adding to 72450110231 its reverse (13201105427), we get a palindrome (85651215658).

The spelling of 72450110231 in words is "seventy-two billion, four hundred fifty million, one hundred ten thousand, two hundred thirty-one".