121513105151 has 8 divisors (see below), whose sum is σ = 122845886064. Its totient is φ = 120182867200.

The previous prime is 121513105057. The next prime is 121513105159. The reversal of 121513105151 is 151501315121.

It is a happy number.

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-121513105151 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 121513105151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121513105159) 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, 539570 + ... + 730863.

It is an arithmetic number, because the mean of its divisors is an integer number (15355735758).

Almost surely, 2^121513105151 is an apocalyptic number.

121513105151 is a deficient number, since it is larger than the sum of its proper divisors (1332780913).

121513105151 is a wasteful number, since it uses less digits than its factorization.

121513105151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271481.

The product of its (nonzero) digits is 750, while the sum is 26.

The spelling of 121513105151 in words is "one hundred twenty-one billion, five hundred thirteen million, one hundred five thousand, one hundred fifty-one".