23133711403237 has 2 divisors, whose sum is σ = 23133711403238. Its totient is φ = 23133711403236.

The previous prime is 23133711403181. The next prime is 23133711403333. The reversal of 23133711403237 is 73230411733132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22429184514916 + 704526888321 = 4735946^2 + 839361^2 .

It is a cyclic number.

It is not a de Polignac number, because 23133711403237 - 2¹¹ = 23133711401189 is a prime.

It is a super-2 number, since 2×23133711403237² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23133711403237.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23133711403337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11566855701618 + 11566855701619.

It is an arithmetic number, because the mean of its divisors is an integer number (11566855701619).

Almost surely, 2^{23133711403237} is an apocalyptic number.

It is an amenable number.

23133711403237 is a deficient number, since it is larger than the sum of its proper divisors (1).

23133711403237 is an equidigital number, since it uses as much as digits as its factorization.

23133711403237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 40.

The spelling of 23133711403237 in words is "twenty-three trillion, one hundred thirty-three billion, seven hundred eleven million, four hundred three thousand, two hundred thirty-seven".