121276653115287 has 8 divisors (see below), whose sum is σ = 163272128466304. Its totient is φ = 80066139920568.

The previous prime is 121276653115187. The next prime is 121276653115301. The reversal of 121276653115287 is 782511356672121.

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

It is not a de Polignac number, because 121276653115287 - 2⁸ = 121276653115031 is a prime.

It is a super-2 number, since 2×121276653115287² (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 (121276653115187) 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, 196240538713 + ... + 196240539330.

It is an arithmetic number, because the mean of its divisors is an integer number (20409016058288).

Almost surely, 2^{121276653115287} is an apocalyptic number.

121276653115287 is a deficient number, since it is larger than the sum of its proper divisors (41995475351017).

121276653115287 is a wasteful number, since it uses less digits than its factorization.

121276653115287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392481078149.

The product of its digits is 8467200, while the sum is 57.

The spelling of 121276653115287 in words is "one hundred twenty-one trillion, two hundred seventy-six billion, six hundred fifty-three million, one hundred fifteen thousand, two hundred eighty-seven".