1232100000 has 324 divisors, whose sum is σ = 4501012698. Its totient is φ = 319680000.

The previous prime is 1232099993. The next prime is 1232100017. The reversal of 1232100000 is 12321.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 9 ways, for example, as 102333456 + 1129766544 = 10116^2 + 33612^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 33299982 + ... + 33300018.

Almost surely, 2^1232100000 is an apocalyptic number.

1232100000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1232100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2250506349).

1232100000 is an abundant number, since it is smaller than the sum of its proper divisors (3268912698).

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

1232100000 is an frugal number, since it uses more digits than its factorization.

1232100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1232100000 is about 35101.2820278690. The cubic root of 1232100000 is about 1072.0506863240.

Adding to 1232100000 its reverse (12321), we get a palindrome (1232112321).

1232100000 divided by its reverse (12321) gives a 5-th power (100000 = 10⁵).

The spelling of 1232100000 in words is "one billion, two hundred thirty-two million, one hundred thousand".