121377107140 has 12 divisors (see below), whose sum is σ = 254891925036. Its totient is φ = 48550842848.

The previous prime is 121377107129. The next prime is 121377107183. The reversal of 121377107140 is 41701773121.

It can be written as a sum of positive squares in 2 ways, for example, as 52842055876 + 68535051264 = 229874^2 + 261792^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121377107096 and 121377107105.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3034427659 + ... + 3034427698.

It is an arithmetic number, because the mean of its divisors is an integer number (21240993753).

Almost surely, 2^121377107140 is an apocalyptic number.

121377107140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121377107140 is an abundant number, since it is smaller than the sum of its proper divisors (133514817896).

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

121377107140 is a wasteful number, since it uses less digits than its factorization.

121377107140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6068855366 (or 6068855364 counting only the distinct ones).

The product of its (nonzero) digits is 8232, while the sum is 34.

The spelling of 121377107140 in words is "one hundred twenty-one billion, three hundred seventy-seven million, one hundred seven thousand, one hundred forty".