1230123112331 has 4 divisors (see below), whose sum is σ = 1235270071200. Its totient is φ = 1224976153464.

The previous prime is 1230123112303. The next prime is 1230123112333. The reversal of 1230123112331 is 1332113210321.

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 1230123112331 - 2¹⁴ = 1230123095947 is a prime.

It is a super-2 number, since 2×1230123112331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230123112297 and 1230123112306.

It is not an unprimeable number, because it can be changed into a prime (1230123112333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2573479076 + ... + 2573479553.

It is an arithmetic number, because the mean of its divisors is an integer number (308817517800).

Almost surely, 2^{1230123112331} is an apocalyptic number.

1230123112331 is a deficient number, since it is larger than the sum of its proper divisors (5146958869).

1230123112331 is an equidigital number, since it uses as much as digits as its factorization.

1230123112331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5146958868.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1230123112331 its reverse (1332113210321), we get a palindrome (2562236322652).

The spelling of 1230123112331 in words is "one trillion, two hundred thirty billion, one hundred twenty-three million, one hundred twelve thousand, three hundred thirty-one".