1232133121100 has 108 divisors (see below), whose sum is σ = 3122361390456. Its totient is φ = 420801454080.

The previous prime is 1232133121097. The next prime is 1232133121123. The reversal of 1232133121100 is 11213312321.

It is a happy number.

It is a super-2 number, since 2×1232133121100² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 770087 + ... + 1748513.

Almost surely, 2^{1232133121100} is an apocalyptic number.

1232133121100 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 1232133121100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1561180695228).

1232133121100 is an abundant number, since it is smaller than the sum of its proper divisors (1890228269356).

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

1232133121100 is a wasteful number, since it uses less digits than its factorization.

1232133121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978712 (or 978698 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1232133121100 its reverse (11213312321), we get a palindrome (1243346433421).

The spelling of 1232133121100 in words is "one trillion, two hundred thirty-two billion, one hundred thirty-three million, one hundred twenty-one thousand, one hundred".