121203103313220 has 48 divisors (see below), whose sum is σ = 341450705803200. Its totient is φ = 32122540262016.

The previous prime is 121203103313213. The next prime is 121203103313267. The reversal of 121203103313220 is 22313301302121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6196467895 + ... + 6196487454.

It is an arithmetic number, because the mean of its divisors is an integer number (7113556370900).

Almost surely, 2^{121203103313220} is an apocalyptic number.

121203103313220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121203103313220 is an abundant number, since it is smaller than the sum of its proper divisors (220247602489980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121203103313220 is a wasteful number, since it uses less digits than its factorization.

121203103313220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12392955524 (or 12392955522 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 121203103313220 its reverse (22313301302121), we get a palindrome (143516404615341).

The spelling of 121203103313220 in words is "one hundred twenty-one trillion, two hundred three billion, one hundred three million, three hundred thirteen thousand, two hundred twenty".