1232145112 has 32 divisors (see below), whose sum is σ = 2525644800. Its totient is φ = 558877600.

The previous prime is 1232145077. The next prime is 1232145133. The reversal of 1232145112 is 2115412321.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27537 + ... + 56767.

It is an arithmetic number, because the mean of its divisors is an integer number (78926400).

Almost surely, 2^1232145112 is an apocalyptic number.

It is an amenable number.

1232145112 is an abundant number, since it is smaller than the sum of its proper divisors (1293499688).

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

1232145112 is a wasteful number, since it uses less digits than its factorization.

1232145112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29727 (or 29723 counting only the distinct ones).

The product of its digits is 480, while the sum is 22.

The square root of 1232145112 is about 35101.9246195989. The cubic root of 1232145112 is about 1072.0637701539.

Adding to 1232145112 its reverse (2115412321), we get a palindrome (3347557433).

The spelling of 1232145112 in words is "one billion, two hundred thirty-two million, one hundred forty-five thousand, one hundred twelve".