231311004203401 has 4 divisors (see below), whose sum is σ = 231604919076112. Its totient is φ = 231017089330692.

The previous prime is 231311004203387. The next prime is 231311004203423. The reversal of 231311004203401 is 104302400113132.

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 231311004203401 - 2¹⁹ = 231311003679113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231311004207401) 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, 146957435175 + ... + 146957436748.

It is an arithmetic number, because the mean of its divisors is an integer number (57901229769028).

Almost surely, 2^{231311004203401} is an apocalyptic number.

It is an amenable number.

231311004203401 is a deficient number, since it is larger than the sum of its proper divisors (293914872711).

231311004203401 is an equidigital number, since it uses as much as digits as its factorization.

231311004203401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293914872710.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 231311004203401 its reverse (104302400113132), we get a palindrome (335613404316533).

The spelling of 231311004203401 in words is "two hundred thirty-one trillion, three hundred eleven billion, four million, two hundred three thousand, four hundred one".