1230155112 has 32 divisors (see below), whose sum is σ = 3076250400. Its totient is φ = 409936704.

The previous prime is 1230155093. The next prime is 1230155117. The reversal of 1230155112 is 2115510321.

It is not an unprimeable number, because it can be changed into a prime (1230155117) 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, 153214 + ... + 161042.

It is an arithmetic number, because the mean of its divisors is an integer number (96132825).

Almost surely, 2^1230155112 is an apocalyptic number.

1230155112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1230155112 is an abundant number, since it is smaller than the sum of its proper divisors (1846095288).

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

1230155112 is a wasteful number, since it uses less digits than its factorization.

1230155112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14385 (or 14381 counting only the distinct ones).

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

The square root of 1230155112 is about 35073.5671410822. The cubic root of 1230155112 is about 1071.4863066590.

Adding to 1230155112 its reverse (2115510321), we get a palindrome (3345665433).

The spelling of 1230155112 in words is "one billion, two hundred thirty million, one hundred fifty-five thousand, one hundred twelve".