231342143401 has 4 divisors (see below), whose sum is σ = 232310102400. Its totient is φ = 230374184404.

The previous prime is 231342143393. The next prime is 231342143407. The reversal of 231342143401 is 104341243132.

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 231342143401 - 2³ = 231342143393 is a prime.

It is a super-3 number, since 3×231342143401³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231342143401.

It is not an unprimeable number, because it can be changed into a prime (231342143407) 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, 483979141 + ... + 483979618.

It is an arithmetic number, because the mean of its divisors is an integer number (58077525600).

Almost surely, 2^231342143401 is an apocalyptic number.

It is an amenable number.

231342143401 is a deficient number, since it is larger than the sum of its proper divisors (967958999).

231342143401 is an equidigital number, since it uses as much as digits as its factorization.

231342143401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 967958998.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 231342143401 its reverse (104341243132), we get a palindrome (335683386533).

The spelling of 231342143401 in words is "two hundred thirty-one billion, three hundred forty-two million, one hundred forty-three thousand, four hundred one".