121313231120211 has 64 divisors (see below), whose sum is σ = 177047563929600. Its totient is φ = 73438520223744.

The previous prime is 121313231120203. The next prime is 121313231120227. The reversal of 121313231120211 is 112021132313121.

It is not a de Polignac number, because 121313231120211 - 2³ = 121313231120203 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121313231120231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 916799391 + ... + 916931703.

It is an arithmetic number, because the mean of its divisors is an integer number (2766368186400).

Almost surely, 2^{121313231120211} is an apocalyptic number.

121313231120211 is a deficient number, since it is larger than the sum of its proper divisors (55734332809389).

121313231120211 is a wasteful number, since it uses less digits than its factorization.

121313231120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133500.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 121313231120211 its reverse (112021132313121), we get a palindrome (233334363433332).

The spelling of 121313231120211 in words is "one hundred twenty-one trillion, three hundred thirteen billion, two hundred thirty-one million, one hundred twenty thousand, two hundred eleven".