72531030456111 has 32 divisors (see below), whose sum is σ = 98643279900672. Its totient is φ = 47394396241920.

The previous prime is 72531030456103. The next prime is 72531030456113. The reversal of 72531030456111 is 11165403013527.

It is not a de Polignac number, because 72531030456111 - 2³ = 72531030456103 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72531030456111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72531030456113) 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, 679184226 + ... + 679291008.

It is an arithmetic number, because the mean of its divisors is an integer number (3082602496896).

Almost surely, 2^{72531030456111} is an apocalyptic number.

72531030456111 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

72531030456111 is a deficient number, since it is larger than the sum of its proper divisors (26112249444561).

72531030456111 is a wasteful number, since it uses less digits than its factorization.

72531030456111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125463.

The product of its (nonzero) digits is 75600, while the sum is 39.

Adding to 72531030456111 its reverse (11165403013527), we get a palindrome (83696433469638).

The spelling of 72531030456111 in words is "seventy-two trillion, five hundred thirty-one billion, thirty million, four hundred fifty-six thousand, one hundred eleven".