23121201001 has 4 divisors (see below), whose sum is σ = 23191053904. Its totient is φ = 23051348100.

The previous prime is 23121200969. The next prime is 23121201121. The reversal of 23121201001 is 10010212132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23121201001 - 2⁵ = 23121200969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23121202001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34925955 + ... + 34926616.

It is an arithmetic number, because the mean of its divisors is an integer number (5797763476).

Almost surely, 2^23121201001 is an apocalyptic number.

It is an amenable number.

23121201001 is a deficient number, since it is larger than the sum of its proper divisors (69852903).

23121201001 is an equidigital number, since it uses as much as digits as its factorization.

23121201001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69852902.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 23121201001 its reverse (10010212132), we get a palindrome (33131413133).

The spelling of 23121201001 in words is "twenty-three billion, one hundred twenty-one million, two hundred one thousand, one".