1223023031 has 4 divisors (see below), whose sum is σ = 1225642392. Its totient is φ = 1220403672.

The previous prime is 1223023007. The next prime is 1223023057. The reversal of 1223023031 is 1303203221.

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 1223023031 - 2⁶ = 1223022967 is a prime.

It is a super-2 number, since 2×1223023031² = 2991570668712853922, which 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 (1223023631) 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, 1308980 + ... + 1309913.

It is an arithmetic number, because the mean of its divisors is an integer number (306410598).

Almost surely, 2^1223023031 is an apocalyptic number.

1223023031 is a deficient number, since it is larger than the sum of its proper divisors (2619361).

1223023031 is an equidigital number, since it uses as much as digits as its factorization.

1223023031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2619360.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1223023031 is about 34971.7461817393. The cubic root of 1223023031 is about 1069.4115700766.

Adding to 1223023031 its reverse (1303203221), we get a palindrome (2526226252).

The spelling of 1223023031 in words is "one billion, two hundred twenty-three million, twenty-three thousand, thirty-one".