23047372237 has 2 divisors, whose sum is σ = 23047372238. Its totient is φ = 23047372236.

The previous prime is 23047372223. The next prime is 23047372273. The reversal of 23047372237 is 73227374032.

Together with next prime (23047372273) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17664802281 + 5382569956 = 132909^2 + 73366^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23047372237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23047372237.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23047372297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11523686118 + 11523686119.

It is an arithmetic number, because the mean of its divisors is an integer number (11523686119).

Almost surely, 2^23047372237 is an apocalyptic number.

It is an amenable number.

23047372237 is a deficient number, since it is larger than the sum of its proper divisors (1).

23047372237 is an equidigital number, since it uses as much as digits as its factorization.

23047372237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 296352, while the sum is 40.

The spelling of 23047372237 in words is "twenty-three billion, forty-seven million, three hundred seventy-two thousand, two hundred thirty-seven".