121351290983999 has 8 divisors (see below), whose sum is σ = 121364906865888. Its totient is φ = 121337675758080.

The previous prime is 121351290983981. The next prime is 121351290984013. The reversal of 121351290983999 is 999389092153121.

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-121351290983999 is a prime.

It is a super-2 number, since 2×121351290983999² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121351290983939) 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, 431590139 + ... + 431871219.

It is an arithmetic number, because the mean of its divisors is an integer number (15170613358236).

Almost surely, 2^{121351290983999} is an apocalyptic number.

121351290983999 is a deficient number, since it is larger than the sum of its proper divisors (13615881889).

121351290983999 is a wasteful number, since it uses less digits than its factorization.

121351290983999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327985.

The product of its (nonzero) digits is 85030560, while the sum is 71.

The spelling of 121351290983999 in words is "one hundred twenty-one trillion, three hundred fifty-one billion, two hundred ninety million, nine hundred eighty-three thousand, nine hundred ninety-nine".