72312303113311 has 4 divisors (see below), whose sum is σ = 73330786255824. Its totient is φ = 71293819970800.

The previous prime is 72312303113243. The next prime is 72312303113317. The reversal of 72312303113311 is 11331130321327.

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 72312303113311 - 2³⁹ = 71762547299423 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 (72312303113317) 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, 509241571150 + ... + 509241571291.

It is an arithmetic number, because the mean of its divisors is an integer number (18332696563956).

Almost surely, 2^{72312303113311} is an apocalyptic number.

72312303113311 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

72312303113311 is a deficient number, since it is larger than the sum of its proper divisors (1018483142513).

72312303113311 is a wasteful number, since it uses less digits than its factorization.

72312303113311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018483142512.

The product of its (nonzero) digits is 6804, while the sum is 31.

Adding to 72312303113311 its reverse (11331130321327), we get a palindrome (83643433434638).

The spelling of 72312303113311 in words is "seventy-two trillion, three hundred twelve billion, three hundred three million, one hundred thirteen thousand, three hundred eleven".