72231232301101 has 2 divisors, whose sum is σ = 72231232301102. Its totient is φ = 72231232301100.

The previous prime is 72231232301069. The next prime is 72231232301147. The reversal of 72231232301101 is 10110323213227.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63917386677225 + 8313845623876 = 7994835^2 + 2883374^2 .

It is an emirp because it is prime and its reverse (10110323213227) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72231232301101 - 2⁵ = 72231232301069 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72231232301101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72231232301171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36115616150550 + 36115616150551.

It is an arithmetic number, because the mean of its divisors is an integer number (36115616150551).

Almost surely, 2^{72231232301101} is an apocalyptic number.

It is an amenable number.

72231232301101 is a deficient number, since it is larger than the sum of its proper divisors (1).

72231232301101 is an equidigital number, since it uses as much as digits as its factorization.

72231232301101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 28.

Adding to 72231232301101 its reverse (10110323213227), we get a palindrome (82341555514328).

The spelling of 72231232301101 in words is "seventy-two trillion, two hundred thirty-one billion, two hundred thirty-two million, three hundred one thousand, one hundred one".