121313203025 has 24 divisors (see below), whose sum is σ = 171942625920. Its totient is φ = 83174348160.

The previous prime is 121313202979. The next prime is 121313203069. The reversal of 121313203025 is 520302313121.

It is not a de Polignac number, because 121313203025 - 2¹⁶ = 121313137489 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1285661 + ... + 1376789.

It is an arithmetic number, because the mean of its divisors is an integer number (7164276080).

Almost surely, 2^121313203025 is an apocalyptic number.

It is an amenable number.

121313203025 is a deficient number, since it is larger than the sum of its proper divisors (50629422895).

121313203025 is an equidigital number, since it uses as much as digits as its factorization.

121313203025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98753 (or 98748 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 121313203025 its reverse (520302313121), we get a palindrome (641615516146).

The spelling of 121313203025 in words is "one hundred twenty-one billion, three hundred thirteen million, two hundred three thousand, twenty-five".