1231003101231 has 20 divisors (see below), whose sum is σ = 1838941804392. Its totient is φ = 820652696208.

The previous prime is 1231003101187. The next prime is 1231003101247. The reversal of 1231003101231 is 1321013001321.

1231003101231 is a `hidden beast` number, since 1 + 2 + 310 + 0 + 310 + 12 + 31 = 666.

It is not a de Polignac number, because 1231003101231 - 2¹⁹ = 1231002576943 is a prime.

It is a super-2 number, since 2×1231003101231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231003101281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5206621 + ... + 5437913.

Almost surely, 2^{1231003101231} is an apocalyptic number.

1231003101231 is a deficient number, since it is larger than the sum of its proper divisors (607938703161).

1231003101231 is an equidigital number, since it uses as much as digits as its factorization.

1231003101231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297012 (or 297003 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1231003101231 its reverse (1321013001321), we get a palindrome (2552016102552).

The spelling of 1231003101231 in words is "one trillion, two hundred thirty-one billion, three million, one hundred one thousand, two hundred thirty-one".