1232100012 has 48 divisors (see below), whose sum is σ = 3377509632. Its totient is φ = 344642880.

The previous prime is 1232099993. The next prime is 1232100017. The reversal of 1232100012 is 2100012321.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (1232100017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357288 + ... + 360719.

It is an arithmetic number, because the mean of its divisors is an integer number (70364784).

Almost surely, 2^1232100012 is an apocalyptic number.

1232100012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1232100012 is an abundant number, since it is smaller than the sum of its proper divisors (2145409620).

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

1232100012 is a wasteful number, since it uses less digits than its factorization.

1232100012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718038 (or 718036 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1232100012 is about 35101.2821988029. The cubic root of 1232100012 is about 1072.0506898044.

Adding to 1232100012 its reverse (2100012321), we get a palindrome (3332112333).

The spelling of 1232100012 in words is "one billion, two hundred thirty-two million, one hundred thousand, twelve".