121255113303 has 12 divisors (see below), whose sum is σ = 175355041680. Its totient is φ = 80740388256.

The previous prime is 121255113271. The next prime is 121255113313. The reversal of 121255113303 is 303311552121.

121255113303 is a `hidden beast` number, since 121 + 25 + 511 + 3 + 3 + 0 + 3 = 666.

It is not a de Polignac number, because 121255113303 - 2⁵ = 121255113271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121255113313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8021526 + ... + 8036627.

It is an arithmetic number, because the mean of its divisors is an integer number (14612920140).

Almost surely, 2^121255113303 is an apocalyptic number.

121255113303 is a deficient number, since it is larger than the sum of its proper divisors (54099928377).

121255113303 is a wasteful number, since it uses less digits than its factorization.

121255113303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16058998 (or 16058995 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

Adding to 121255113303 its reverse (303311552121), we get a palindrome (424566665424).

The spelling of 121255113303 in words is "one hundred twenty-one billion, two hundred fifty-five million, one hundred thirteen thousand, three hundred three".