23154020233 has 2 divisors, whose sum is σ = 23154020234. Its totient is φ = 23154020232.

The previous prime is 23154020117. The next prime is 23154020237. The reversal of 23154020233 is 33202045132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23087890809 + 66129424 = 151947^2 + 8132^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23154020233 is a prime.

It is a super-2 number, since 2×23154020233² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23154020198 and 23154020207.

It is not a weakly prime, because it can be changed into another prime (23154020237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11577010116 + 11577010117.

It is an arithmetic number, because the mean of its divisors is an integer number (11577010117).

Almost surely, 2^23154020233 is an apocalyptic number.

It is an amenable number.

23154020233 is a deficient number, since it is larger than the sum of its proper divisors (1).

23154020233 is an equidigital number, since it uses as much as digits as its factorization.

23154020233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 23154020233 its reverse (33202045132), we get a palindrome (56356065365).

The spelling of 23154020233 in words is "twenty-three billion, one hundred fifty-four million, twenty thousand, two hundred thirty-three".