121313310203210 has 8 divisors (see below), whose sum is σ = 218363958365796. Its totient is φ = 48525324081280.

The previous prime is 121313310203207. The next prime is 121313310203249. The reversal of 121313310203210 is 12302013313121.

It can be written as a sum of positive squares in 2 ways, for example, as 120641731592209 + 671578611001 = 10983703^2 + 819499^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6065665510151 + ... + 6065665510170.

Almost surely, 2^{121313310203210} is an apocalyptic number.

121313310203210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121313310203210 is a deficient number, since it is larger than the sum of its proper divisors (97050648162586).

121313310203210 is a wasteful number, since it uses less digits than its factorization.

121313310203210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12131331020328.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 121313310203210 its reverse (12302013313121), we get a palindrome (133615323516331).

The spelling of 121313310203210 in words is "one hundred twenty-one trillion, three hundred thirteen billion, three hundred ten million, two hundred three thousand, two hundred ten".