23401021 has 8 divisors (see below), whose sum is σ = 26819840. Its totient is φ = 20001168.

The previous prime is 23401019. The next prime is 23401093. The reversal of 23401021 is 12010432.

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 23401021 - 2¹ = 23401019 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 23400992 and 23401010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23401921) 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, 1986 + ... + 7123.

It is an arithmetic number, because the mean of its divisors is an integer number (3352480).

Almost surely, 2^23401021 is an apocalyptic number.

It is an amenable number.

23401021 is a deficient number, since it is larger than the sum of its proper divisors (3418819).

23401021 is an equidigital number, since it uses as much as digits as its factorization.

23401021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9483.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 23401021 is about 4837.4601807147. The cubic root of 23401021 is about 286.0300105434.

Adding to 23401021 its reverse (12010432), we get a palindrome (35411453).

The spelling of 23401021 in words is "twenty-three million, four hundred one thousand, twenty-one".