231213131103 has 8 divisors (see below), whose sum is σ = 309512399616. Its totient is φ = 153527975000.

The previous prime is 231213131099. The next prime is 231213131117. The reversal of 231213131103 is 301131312132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231213131103 - 2² = 231213131099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 231213131103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231213131153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153527223 + ... + 153528728.

It is an arithmetic number, because the mean of its divisors is an integer number (38689049952).

Almost surely, 2^231213131103 is an apocalyptic number.

231213131103 is a deficient number, since it is larger than the sum of its proper divisors (78299268513).

231213131103 is a wasteful number, since it uses less digits than its factorization.

231213131103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307056205.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 231213131103 its reverse (301131312132), we get a palindrome (532344443235).

The spelling of 231213131103 in words is "two hundred thirty-one billion, two hundred thirteen million, one hundred thirty-one thousand, one hundred three".