121762440140 has 48 divisors (see below), whose sum is σ = 280143995040. Its totient is φ = 44087201280.

The previous prime is 121762440113. The next prime is 121762440227. The reversal of 121762440140 is 41044267121.

It is a junction number, because it is equal to n+sod(n) for n = 121762440097 and 121762440106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1136435 + ... + 1238954.

It is an arithmetic number, because the mean of its divisors is an integer number (5836333230).

Almost surely, 2^121762440140 is an apocalyptic number.

121762440140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121762440140 is an abundant number, since it is smaller than the sum of its proper divisors (158381554900).

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

121762440140 is a wasteful number, since it uses less digits than its factorization.

121762440140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2375642 (or 2375640 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The spelling of 121762440140 in words is "one hundred twenty-one billion, seven hundred sixty-two million, four hundred forty thousand, one hundred forty".