231320223001 has 48 divisors (see below), whose sum is σ = 282708486144. Its totient is φ = 185364596448.

The previous prime is 231320222993. The next prime is 231320223007. The reversal of 231320223001 is 100322023132.

It is not a de Polignac number, because 231320223001 - 2³ = 231320222993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 231320223001.

It is not an unprimeable number, because it can be changed into a prime (231320223007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76518576 + ... + 76521598.

It is an arithmetic number, because the mean of its divisors is an integer number (5889760128).

Almost surely, 2^231320223001 is an apocalyptic number.

It is an amenable number.

231320223001 is a deficient number, since it is larger than the sum of its proper divisors (51388263143).

231320223001 is a wasteful number, since it uses less digits than its factorization.

231320223001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3458 (or 3439 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 231320223001 its reverse (100322023132), we get a palindrome (331642246133).

The spelling of 231320223001 in words is "two hundred thirty-one billion, three hundred twenty million, two hundred twenty-three thousand, one".