235155121100 has 72 divisors (see below), whose sum is σ = 532624243200. Its totient is φ = 89946838080.

The previous prime is 235155121049. The next prime is 235155121127. The reversal of 235155121100 is 1121551532.

It is a self number, because there is not a number n which added to its sum of digits gives 235155121100.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9415229 + ... + 9440171.

Almost surely, 2^235155121100 is an apocalyptic number.

235155121100 is a gapful number since it is divisible by the number (20) 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 235155121100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (266312121600).

235155121100 is an abundant number, since it is smaller than the sum of its proper divisors (297469122100).

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

235155121100 is a wasteful number, since it uses less digits than its factorization.

235155121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29079 (or 29072 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 26.

Adding to 235155121100 its reverse (1121551532), we get a palindrome (236276672632).

The spelling of 235155121100 in words is "two hundred thirty-five billion, one hundred fifty-five million, one hundred twenty-one thousand, one hundred".