121134401112 has 64 divisors (see below), whose sum is σ = 308949252480. Its totient is φ = 39569283072.

The previous prime is 121134401111. The next prime is 121134401117. The reversal of 121134401112 is 211104431121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121134401111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115183 + ... + 505505.

It is an arithmetic number, because the mean of its divisors is an integer number (4827332070).

Almost surely, 2^121134401112 is an apocalyptic number.

121134401112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121134401112 is an abundant number, since it is smaller than the sum of its proper divisors (187814851368).

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

121134401112 is a wasteful number, since it uses less digits than its factorization.

121134401112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390592 (or 390588 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 121134401112 its reverse (211104431121), we get a palindrome (332238832233).

The spelling of 121134401112 in words is "one hundred twenty-one billion, one hundred thirty-four million, four hundred one thousand, one hundred twelve".