121431102104 has 32 divisors (see below), whose sum is σ = 247725246720. Its totient is φ = 55467334656.

The previous prime is 121431102061. The next prime is 121431102109. The reversal of 121431102104 is 401201134121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121431102109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6008504 + ... + 6028679.

It is an arithmetic number, because the mean of its divisors is an integer number (7741413960).

Almost surely, 2^121431102104 is an apocalyptic number.

It is an amenable number.

121431102104 is an abundant number, since it is smaller than the sum of its proper divisors (126294144616).

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

121431102104 is a wasteful number, since it uses less digits than its factorization.

121431102104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12037299 (or 12037295 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 121431102104 its reverse (401201134121), we get a palindrome (522632236225).

The spelling of 121431102104 in words is "one hundred twenty-one billion, four hundred thirty-one million, one hundred two thousand, one hundred four".