1231123423110 has 128 divisors (see below), whose sum is σ = 3579934040064. Its totient is φ = 264962119680.

The previous prime is 1231123423109. The next prime is 1231123423207. The reversal of 1231123423110 is 113243211321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2314707 + ... + 2796446.

It is an arithmetic number, because the mean of its divisors is an integer number (27968234688).

Almost surely, 2^{1231123423110} is an apocalyptic number.

1231123423110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231123423110 is an abundant number, since it is smaller than the sum of its proper divisors (2348810616954).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231123423110 is a wasteful number, since it uses less digits than its factorization.

1231123423110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5111238.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 1231123423110 its reverse (113243211321), we get a palindrome (1344366634431).

The spelling of 1231123423110 in words is "one trillion, two hundred thirty-one billion, one hundred twenty-three million, four hundred twenty-three thousand, one hundred ten".