121241313474540 has 48 divisors (see below), whose sum is σ = 387972203119872. Its totient is φ = 27712300222656.

The previous prime is 121241313474521. The next prime is 121241313474569. The reversal of 121241313474540 is 45474313142121.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 121241313474492 and 121241313474501.

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, 144334896574 + ... + 144334897413.

It is an arithmetic number, because the mean of its divisors is an integer number (8082754231664).

Almost surely, 2^{121241313474540} is an apocalyptic number.

121241313474540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121241313474540 is an abundant number, since it is smaller than the sum of its proper divisors (266730889645332).

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

121241313474540 is a wasteful number, since it uses less digits than its factorization.

121241313474540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288669794006 (or 288669794004 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 42.

The spelling of 121241313474540 in words is "one hundred twenty-one trillion, two hundred forty-one billion, three hundred thirteen million, four hundred seventy-four thousand, five hundred forty".