23423002121 has 8 divisors (see below), whose sum is σ = 23461617480. Its totient is φ = 23384414592.

The previous prime is 23423002117. The next prime is 23423002123. The reversal of 23423002121 is 12120032432.

It can be written as a sum of positive squares in 4 ways, for example, as 1796064400 + 21626937721 = 42380^2 + 147061^2 .

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 23423002121 - 2² = 23423002117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23423002093 and 23423002102.

It is not an unprimeable number, because it can be changed into a prime (23423002123) 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, 2240735 + ... + 2251163.

It is an arithmetic number, because the mean of its divisors is an integer number (2932702185).

Almost surely, 2^23423002121 is an apocalyptic number.

It is an amenable number.

23423002121 is a deficient number, since it is larger than the sum of its proper divisors (38615359).

23423002121 is a wasteful number, since it uses less digits than its factorization.

23423002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13915.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 23423002121 its reverse (12120032432), we get a palindrome (35543034553).

The spelling of 23423002121 in words is "twenty-three billion, four hundred twenty-three million, two thousand, one hundred twenty-one".