121112320311100 has 18 divisors (see below), whose sum is σ = 262813735075304. Its totient is φ = 48444928124400.

The previous prime is 121112320311077. The next prime is 121112320311131. The reversal of 121112320311100 is 1113023211121.

It is a super-2 number, since 2×121112320311100² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 605561601456 + ... + 605561601655.

Almost surely, 2^{121112320311100} is an apocalyptic number.

121112320311100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121112320311100 is an abundant number, since it is smaller than the sum of its proper divisors (141701414764204).

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

121112320311100 is a wasteful number, since it uses less digits than its factorization.

121112320311100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1211123203125 (or 1211123203118 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 121112320311100 its reverse (1113023211121), we get a palindrome (122225343522221).

The spelling of 121112320311100 in words is "one hundred twenty-one trillion, one hundred twelve billion, three hundred twenty million, three hundred eleven thousand, one hundred".