231641331623 has 12 divisors (see below), whose sum is σ = 251140752720. Its totient is φ = 213558336576.

The previous prime is 231641331617. The next prime is 231641331629. The reversal of 231641331623 is 326133146132.

It is an interprime number because it is at equal distance from previous prime (231641331617) and next prime (231641331629).

It is not a de Polignac number, because 231641331623 - 2¹² = 231641327527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231641331629) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 710411 + ... + 983852.

It is an arithmetic number, because the mean of its divisors is an integer number (20928396060).

Almost surely, 2^231641331623 is an apocalyptic number.

231641331623 is a deficient number, since it is larger than the sum of its proper divisors (19499421097).

231641331623 is a wasteful number, since it uses less digits than its factorization.

231641331623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1695098 (or 1695085 counting only the distinct ones).

The product of its digits is 46656, while the sum is 35.

Adding to 231641331623 its reverse (326133146132), we get a palindrome (557774477755).

The spelling of 231641331623 in words is "two hundred thirty-one billion, six hundred forty-one million, three hundred thirty-one thousand, six hundred twenty-three".