1223831152 has 40 divisors (see below), whose sum is σ = 2401551152. Its totient is φ = 604108800.

The previous prime is 1223831143. The next prime is 1223831153. The reversal of 1223831152 is 2511383221.

It is a self number, because there is not a number n which added to its sum of digits gives 1223831152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223831153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 885502 + ... + 886882.

Almost surely, 2^1223831152 is an apocalyptic number.

It is an amenable number.

1223831152 is a deficient number, since it is larger than the sum of its proper divisors (1177720000).

1223831152 is a wasteful number, since it uses less digits than its factorization.

1223831152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057 (or 2051 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 1223831152 is about 34983.2981864203. The cubic root of 1223831152 is about 1069.6470586025.

The spelling of 1223831152 in words is "one billion, two hundred twenty-three million, eight hundred thirty-one thousand, one hundred fifty-two".