23210121001 has 8 divisors (see below), whose sum is σ = 23308559784. Its totient is φ = 23111884800.

The previous prime is 23210120993. The next prime is 23210121041. The reversal of 23210121001 is 10012101232.

It can be written as a sum of positive squares in 4 ways, for example, as 12127295376 + 11082825625 = 110124^2 + 105275^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23210121001 - 2³ = 23210120993 is a prime.

It is a super-2 number, since 2×23210121001² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23210121041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181221 + ... + 281533.

It is an arithmetic number, because the mean of its divisors is an integer number (2913569973).

Almost surely, 2^23210121001 is an apocalyptic number.

It is an amenable number.

23210121001 is a deficient number, since it is larger than the sum of its proper divisors (98438783).

23210121001 is a wasteful number, since it uses less digits than its factorization.

23210121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101291.

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

Adding to 23210121001 its reverse (10012101232), we get a palindrome (33222222233).

The spelling of 23210121001 in words is "twenty-three billion, two hundred ten million, one hundred twenty-one thousand, one".