121396115005 has 16 divisors (see below), whose sum is σ = 159318877824. Its totient is φ = 88065679680.

The previous prime is 121396114991. The next prime is 121396115021. The reversal of 121396115005 is 500511693121.

It is not a de Polignac number, because 121396115005 - 2⁹ = 121396114493 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 2758017 + ... + 2801686.

It is an arithmetic number, because the mean of its divisors is an integer number (9957429864).

Almost surely, 2^121396115005 is an apocalyptic number.

It is an amenable number.

121396115005 is a deficient number, since it is larger than the sum of its proper divisors (37922762819).

121396115005 is a wasteful number, since it uses less digits than its factorization.

121396115005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5560116.

The product of its (nonzero) digits is 8100, while the sum is 34.

The spelling of 121396115005 in words is "one hundred twenty-one billion, three hundred ninety-six million, one hundred fifteen thousand, five".