103231123231 has 4 divisors (see below), whose sum is σ = 103335292864. Its totient is φ = 103126953600.

The previous prime is 103231123217. The next prime is 103231123243. The reversal of 103231123231 is 132321132301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103231123231 - 2¹⁹ = 103230598943 is a prime.

It is a super-2 number, since 2×103231123231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103231123291) 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 3 ways as a sum of consecutive naturals, for example, 52083330 + ... + 52085311.

It is an arithmetic number, because the mean of its divisors is an integer number (25833823216).

Almost surely, 2^103231123231 is an apocalyptic number.

103231123231 is a deficient number, since it is larger than the sum of its proper divisors (104169633).

103231123231 is an equidigital number, since it uses as much as digits as its factorization.

103231123231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104169632.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 103231123231 its reverse (132321132301), we get a palindrome (235552255532).

The spelling of 103231123231 in words is "one hundred three billion, two hundred thirty-one million, one hundred twenty-three thousand, two hundred thirty-one".