121703715245 has 16 divisors (see below), whose sum is σ = 166921973760. Its totient is φ = 83446965504.

The previous prime is 121703715223. The next prime is 121703715251. The reversal of 121703715245 is 542517307121.

It is not a de Polignac number, because 121703715245 - 2¹² = 121703711149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121703715199 and 121703715208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295316 + ... + 574994.

It is an arithmetic number, because the mean of its divisors is an integer number (10432623360).

Almost surely, 2^121703715245 is an apocalyptic number.

It is an amenable number.

121703715245 is a deficient number, since it is larger than the sum of its proper divisors (45218258515).

121703715245 is a wasteful number, since it uses less digits than its factorization.

121703715245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292124.

The product of its (nonzero) digits is 58800, while the sum is 38.

The spelling of 121703715245 in words is "one hundred twenty-one billion, seven hundred three million, seven hundred fifteen thousand, two hundred forty-five".