121303023155 has 8 divisors (see below), whose sum is σ = 151892481312. Its totient is φ = 92823182848.

The previous prime is 121303023151. The next prime is 121303023187. The reversal of 121303023155 is 551320303121.

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

It is a cyclic number.

It is not a de Polignac number, because 121303023155 - 2² = 121303023151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121303023151) 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, 527404334 + ... + 527404563.

It is an arithmetic number, because the mean of its divisors is an integer number (18986560164).

Almost surely, 2^121303023155 is an apocalyptic number.

121303023155 is a deficient number, since it is larger than the sum of its proper divisors (30589458157).

121303023155 is a wasteful number, since it uses less digits than its factorization.

121303023155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054808925.

The product of its (nonzero) digits is 2700, while the sum is 26.

Adding to 121303023155 its reverse (551320303121), we get a palindrome (672623326276).

The spelling of 121303023155 in words is "one hundred twenty-one billion, three hundred three million, twenty-three thousand, one hundred fifty-five".