1231055304 has 16 divisors (see below), whose sum is σ = 3077638320. Its totient is φ = 410351760.

The previous prime is 1231055303. The next prime is 1231055333. The reversal of 1231055304 is 4035501321.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 51293971 = 1231055304 / (1 + 2 + 3 + 1 + 0 + 5 + 5 + 3 + 0 + 4).

It is not an unprimeable number, because it can be changed into a prime (1231055303) 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, 25646962 + ... + 25647009.

It is an arithmetic number, because the mean of its divisors is an integer number (192352395).

Almost surely, 2^1231055304 is an apocalyptic number.

It is an amenable number.

1231055304 is an abundant number, since it is smaller than the sum of its proper divisors (1846583016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231055304 is a wasteful number, since it uses less digits than its factorization.

1231055304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51293980 (or 51293976 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1231055304 is about 35086.3977062337. The cubic root of 1231055304 is about 1071.7476038489.

Adding to 1231055304 its reverse (4035501321), we get a palindrome (5266556625).

The spelling of 1231055304 in words is "one billion, two hundred thirty-one million, fifty-five thousand, three hundred four".