923047241531 has 2 divisors, whose sum is σ = 923047241532. Its totient is φ = 923047241530.

The previous prime is 923047241513. The next prime is 923047241551. The reversal of 923047241531 is 135142740329.

Together with previous prime (923047241513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is an emirp because it is prime and its reverse (135142740329) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-923047241531 is a prime.

It is a super-2 number, since 2×923047241531² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (923047241551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 461523620765 + 461523620766.

It is an arithmetic number, because the mean of its divisors is an integer number (461523620766).

Almost surely, 2^923047241531 is an apocalyptic number.

923047241531 is a deficient number, since it is larger than the sum of its proper divisors (1).

923047241531 is an equidigital number, since it uses as much as digits as its factorization.

923047241531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 41.

The spelling of 923047241531 in words is "nine hundred twenty-three billion, forty-seven million, two hundred forty-one thousand, five hundred thirty-one".