121210313313 has 8 divisors (see below), whose sum is σ = 161810125888. Its totient is φ = 80708688144.

The previous prime is 121210313311. The next prime is 121210313347. The reversal of 121210313313 is 313313012121.

It is a happy number.

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

It is not a de Polignac number, because 121210313313 - 2¹ = 121210313311 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121210313313.

It is not an unprimeable number, because it can be changed into a prime (121210313311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24543970 + ... + 24548907.

It is an arithmetic number, because the mean of its divisors is an integer number (20226265736).

Almost surely, 2^121210313313 is an apocalyptic number.

It is an amenable number.

121210313313 is a deficient number, since it is larger than the sum of its proper divisors (40599812575).

121210313313 is an equidigital number, since it uses as much as digits as its factorization.

121210313313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49093703.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 121210313313 its reverse (313313012121), we get a palindrome (434523325434).

The spelling of 121210313313 in words is "one hundred twenty-one billion, two hundred ten million, three hundred thirteen thousand, three hundred thirteen".