1231110023 has 24 divisors (see below), whose sum is σ = 1484892864. Its totient is φ = 1013538240.

The previous prime is 1231110019. The next prime is 1231110031. The reversal of 1231110023 is 3200111321.

It is not a de Polignac number, because 1231110023 - 2² = 1231110019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231110823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75986 + ... + 90752.

It is an arithmetic number, because the mean of its divisors is an integer number (61870536).

Almost surely, 2^1231110023 is an apocalyptic number.

1231110023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1231110023 is a deficient number, since it is larger than the sum of its proper divisors (253782841).

1231110023 is a wasteful number, since it uses less digits than its factorization.

1231110023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14855 (or 14844 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1231110023 is about 35087.1774726894. The cubic root of 1231110023 is about 1071.7634829320.

Adding to 1231110023 its reverse (3200111321), we get a palindrome (4431221344).

The spelling of 1231110023 in words is "one billion, two hundred thirty-one million, one hundred ten thousand, twenty-three".