1232100000000 has 729 divisors, whose sum is σ = 4563816510981. Its totient is φ = 319680000000.

The previous prime is 1232099999993. The next prime is 1232100000049. The reversal of 1232100000000 is 12321.

It is a happy number.

The square root of 1232100000000 is 1110000.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 13 ways, for example, as 478620446976 + 753479553024 = 691824^2 + 868032^2 .

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 80 ways as a sum of consecutive naturals, for example, 33299999982 + ... + 33300000018.

Almost surely, 2^{1232100000000} is an apocalyptic number.

1232100000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1232100000000 is the 1110000-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1232100000000

1232100000000 is an abundant number, since it is smaller than the sum of its proper divisors (3331716510981).

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

1232100000000 is an frugal number, since it uses more digits than its factorization.

1232100000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136 (or 47 counting only the distinct ones).

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

Adding to 1232100000000 its reverse (12321), we get a palindrome (1232100012321).

1232100000000 divided by its reverse (12321) gives a 8-th power (100000000 = 10⁸).

The spelling of 1232100000000 in words is "one trillion, two hundred thirty-two billion, one hundred million", and thus it is an aban number.