121055443315 has 8 divisors (see below), whose sum is σ = 145305911088. Its totient is φ = 96818101920.

The previous prime is 121055443307. The next prime is 121055443319. The reversal of 121055443315 is 513344550121.

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

It is not a de Polignac number, because 121055443315 - 2³ = 121055443307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121055443319) 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, 3261292 + ... + 3298201.

It is an arithmetic number, because the mean of its divisors is an integer number (18163238886).

Almost surely, 2^121055443315 is an apocalyptic number.

121055443315 is a deficient number, since it is larger than the sum of its proper divisors (24250467773).

121055443315 is an equidigital number, since it uses as much as digits as its factorization.

121055443315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6563189.

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 121055443315 its reverse (513344550121), we get a palindrome (634399993436).

The spelling of 121055443315 in words is "one hundred twenty-one billion, fifty-five million, four hundred forty-three thousand, three hundred fifteen".