1230111552 has 28 divisors (see below), whose sum is σ = 3254670656. Its totient is φ = 410037120.

The previous prime is 1230111523. The next prime is 1230111563. The reversal of 1230111552 is 2551110321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3203224 + ... + 3203607.

Almost surely, 2^1230111552 is an apocalyptic number.

1230111552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1230111552 is an abundant number, since it is smaller than the sum of its proper divisors (2024559104).

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

1230111552 is an equidigital number, since it uses as much as digits as its factorization.

1230111552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6406846 (or 6406836 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 1230111552 is about 35072.9461551208. The cubic root of 1230111552 is about 1071.4736593394.

Adding to 1230111552 its reverse (2551110321), we get a palindrome (3781221873).

The spelling of 1230111552 in words is "one billion, two hundred thirty million, one hundred eleven thousand, five hundred fifty-two".