121740488863 has 8 divisors (see below), whose sum is σ = 139472166560. Its totient is φ = 104093856000.

The previous prime is 121740488843. The next prime is 121740488911. The reversal of 121740488863 is 368884047121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121740488863 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121740488863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121740488843) 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, 21258138 + ... + 21263863.

It is an arithmetic number, because the mean of its divisors is an integer number (17434020820).

Almost surely, 2^121740488863 is an apocalyptic number.

121740488863 is a deficient number, since it is larger than the sum of its proper divisors (17731677697).

121740488863 is an equidigital number, since it uses as much as digits as its factorization.

121740488863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42522417.

The product of its (nonzero) digits is 2064384, while the sum is 52.

The spelling of 121740488863 in words is "one hundred twenty-one billion, seven hundred forty million, four hundred eighty-eight thousand, eight hundred sixty-three".