121550534113115 has 8 divisors (see below), whose sum is σ = 152202407933088. Its totient is φ = 93012582625600.

The previous prime is 121550534113097. The next prime is 121550534113117. The reversal of 121550534113115 is 511311435055121.

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

It is not a de Polignac number, because 121550534113115 - 2³² = 121546239145819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121550534113117) 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, 528480582986 + ... + 528480583215.

It is an arithmetic number, because the mean of its divisors is an integer number (19025300991636).

Almost surely, 2^{121550534113115} is an apocalyptic number.

121550534113115 is a deficient number, since it is larger than the sum of its proper divisors (30651873819973).

121550534113115 is a wasteful number, since it uses less digits than its factorization.

121550534113115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056961166229.

The product of its (nonzero) digits is 45000, while the sum is 38.

Adding to 121550534113115 its reverse (511311435055121), we get a palindrome (632861969168236).

The spelling of 121550534113115 in words is "one hundred twenty-one trillion, five hundred fifty billion, five hundred thirty-four million, one hundred thirteen thousand, one hundred fifteen".