23133121001 has 2 divisors, whose sum is σ = 23133121002. Its totient is φ = 23133121000.

The previous prime is 23133120949. The next prime is 23133121003. The reversal of 23133121001 is 10012133132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23088498601 + 44622400 = 151949^2 + 6680^2 .

It is a cyclic number.

It is not a de Polignac number, because 23133121001 - 2⁶ = 23133120937 is a prime.

Together with 23133121003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23133121003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11566560500 + 11566560501.

It is an arithmetic number, because the mean of its divisors is an integer number (11566560501).

Almost surely, 2^23133121001 is an apocalyptic number.

It is an amenable number.

23133121001 is a deficient number, since it is larger than the sum of its proper divisors (1).

23133121001 is an equidigital number, since it uses as much as digits as its factorization.

23133121001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 23133121001 its reverse (10012133132), we get a palindrome (33145254133).

The spelling of 23133121001 in words is "twenty-three billion, one hundred thirty-three million, one hundred twenty-one thousand, one".