1121123230100 has 72 divisors (see below), whose sum is σ = 2582672698368. Its totient is φ = 420967667200.

The previous prime is 1121123230081. The next prime is 1121123230277. The reversal of 1121123230100 is 10323211211.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

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, 209846 + ... + 1512045.

It is an arithmetic number, because the mean of its divisors is an integer number (35870454144).

Almost surely, 2^{1121123230100} is an apocalyptic number.

1121123230100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121123230100 is an abundant number, since it is smaller than the sum of its proper divisors (1461549468268).

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

1121123230100 is a wasteful number, since it uses less digits than its factorization.

1121123230100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722305 (or 1722298 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1121123230100 its reverse (10323211211), we get a palindrome (1131446441311).

The spelling of 1121123230100 in words is "one trillion, one hundred twenty-one billion, one hundred twenty-three million, two hundred thirty thousand, one hundred".