23321312149 has 2 divisors, whose sum is σ = 23321312150. Its totient is φ = 23321312148.

The previous prime is 23321312141. The next prime is 23321312167. The reversal of 23321312149 is 94121312332.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19129656100 + 4191656049 = 138310^2 + 64743^2 .

It is a cyclic number.

It is not a de Polignac number, because 23321312149 - 2³ = 23321312141 is a prime.

It is a super-3 number, since 3×23321312149³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23321312149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23321312141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11660656074 + 11660656075.

It is an arithmetic number, because the mean of its divisors is an integer number (11660656075).

Almost surely, 2^23321312149 is an apocalyptic number.

It is an amenable number.

23321312149 is a deficient number, since it is larger than the sum of its proper divisors (1).

23321312149 is an equidigital number, since it uses as much as digits as its factorization.

23321312149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 31.

The spelling of 23321312149 in words is "twenty-three billion, three hundred twenty-one million, three hundred twelve thousand, one hundred forty-nine".