1223122923 has 80 divisors (see below), whose sum is σ = 2069971200. Its totient is φ = 713344320.

The previous prime is 1223122897. The next prime is 1223122939. The reversal of 1223122923 is 3292213221.

It is not a de Polignac number, because 1223122923 - 2¹³ = 1223114731 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1223122963) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2785938 + ... + 2786376.

It is an arithmetic number, because the mean of its divisors is an integer number (25874640).

Almost surely, 2^1223122923 is an apocalyptic number.

1223122923 is a deficient number, since it is larger than the sum of its proper divisors (846848277).

1223122923 is a wasteful number, since it uses less digits than its factorization.

1223122923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 574 (or 565 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 1223122923 is about 34973.1743340521. The cubic root of 1223122923 is about 1069.4406844785.

The spelling of 1223122923 in words is "one billion, two hundred twenty-three million, one hundred twenty-two thousand, nine hundred twenty-three".