121133040100 has 18 divisors (see below), whose sum is σ = 262858697234. Its totient is φ = 48453216000.

The previous prime is 121133040089. The next prime is 121133040139. The reversal of 121133040100 is 1040331121.

It can be written as a sum of positive squares in 3 ways, for example, as 41613552036 + 79519488064 = 203994^2 + 281992^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 605665101 + ... + 605665300.

Almost surely, 2^121133040100 is an apocalyptic number.

121133040100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121133040100 is an abundant number, since it is smaller than the sum of its proper divisors (141725657134).

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

121133040100 is a wasteful number, since it uses less digits than its factorization.

121133040100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211330415 (or 1211330408 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 121133040100 its reverse (1040331121), we get a palindrome (122173371221).

The spelling of 121133040100 in words is "one hundred twenty-one billion, one hundred thirty-three million, forty thousand, one hundred".