121340305019 has 8 divisors (see below), whose sum is σ = 121896271680. Its totient is φ = 120784741056.

The previous prime is 121340304989. The next prime is 121340305033. The reversal of 121340305019 is 910503043121.

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

It is a cyclic number.

It is not a de Polignac number, because 121340305019 - 2⁸ = 121340304763 is a prime.

It is a super-2 number, since 2×121340305019² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121340304982 and 121340305000.

It is not an unprimeable number, because it can be changed into a prime (121343305019) 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, 511847 + ... + 710399.

It is an arithmetic number, because the mean of its divisors is an integer number (15237033960).

Almost surely, 2^121340305019 is an apocalyptic number.

121340305019 is a deficient number, since it is larger than the sum of its proper divisors (555966661).

121340305019 is a wasteful number, since it uses less digits than its factorization.

121340305019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201349.

The product of its (nonzero) digits is 3240, while the sum is 29.

The spelling of 121340305019 in words is "one hundred twenty-one billion, three hundred forty million, three hundred five thousand, nineteen".