72621132303311 has 4 divisors (see below), whose sum is σ = 76443297161400. Its totient is φ = 68798967445224.

The previous prime is 72621132303289. The next prime is 72621132303319. The reversal of 72621132303311 is 11330323112627.

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 72621132303311 - 2⁴² = 68223085792207 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 (72621132303319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1911082429016 + ... + 1911082429053.

It is an arithmetic number, because the mean of its divisors is an integer number (19110824290350).

Almost surely, 2^{72621132303311} is an apocalyptic number.

72621132303311 is a deficient number, since it is larger than the sum of its proper divisors (3822164858089).

72621132303311 is a wasteful number, since it uses less digits than its factorization.

72621132303311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3822164858088.

The product of its (nonzero) digits is 27216, while the sum is 35.

Adding to 72621132303311 its reverse (11330323112627), we get a palindrome (83951455415938).

The spelling of 72621132303311 in words is "seventy-two trillion, six hundred twenty-one billion, one hundred thirty-two million, three hundred three thousand, three hundred eleven".