231000023401 has 4 divisors (see below), whose sum is σ = 264000026752. Its totient is φ = 198000020052.

The previous prime is 231000023399. The next prime is 231000023413. The reversal of 231000023401 is 104320000132.

It is a happy number.

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 231000023401 - 2¹ = 231000023399 is a prime.

It is a super-2 number, since 2×231000023401² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231000003401) 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, 16500001665 + ... + 16500001678.

It is an arithmetic number, because the mean of its divisors is an integer number (66000006688).

Almost surely, 2^231000023401 is an apocalyptic number.

It is an amenable number.

231000023401 is a deficient number, since it is larger than the sum of its proper divisors (33000003351).

231000023401 is an equidigital number, since it uses as much as digits as its factorization.

231000023401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33000003350.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 231000023401 its reverse (104320000132), we get a palindrome (335320023533).

The spelling of 231000023401 in words is "two hundred thirty-one billion, twenty-three thousand, four hundred one".