231223103013 has 12 divisors (see below), whose sum is σ = 358631751840. Its totient is φ = 132127487352.

The previous prime is 231223103011. The next prime is 231223103029. The reversal of 231223103013 is 310301322132.

It is not a de Polignac number, because 231223103013 - 2¹ = 231223103011 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231223103011) 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, 786472993 + ... + 786473286.

It is an arithmetic number, because the mean of its divisors is an integer number (29885979320).

Almost surely, 2^231223103013 is an apocalyptic number.

It is an amenable number.

231223103013 is a deficient number, since it is larger than the sum of its proper divisors (127408648827).

231223103013 is a wasteful number, since it uses less digits than its factorization.

231223103013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572946296 (or 1572946289 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 231223103013 its reverse (310301322132), we get a palindrome (541524425145).

The spelling of 231223103013 in words is "two hundred thirty-one billion, two hundred twenty-three million, one hundred three thousand, thirteen".