121341012100 has 72 divisors (see below), whose sum is σ = 328282613568. Its totient is φ = 37820572800.

The previous prime is 121341012097. The next prime is 121341012103. The reversal of 121341012100 is 1210143121.

It is an interprime number because it is at equal distance from previous prime (121341012097) and next prime (121341012103).

It is not an unprimeable number, because it can be changed into a prime (121341012103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7871587 + ... + 7886986.

It is an arithmetic number, because the mean of its divisors is an integer number (4559480744).

Almost surely, 2^121341012100 is an apocalyptic number.

121341012100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121341012100 is an abundant number, since it is smaller than the sum of its proper divisors (206941601468).

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

121341012100 is a wasteful number, since it uses less digits than its factorization.

121341012100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15758605 (or 15758598 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 121341012100 its reverse (1210143121), we get a palindrome (122551155221).

The spelling of 121341012100 in words is "one hundred twenty-one billion, three hundred forty-one million, twelve thousand, one hundred".