121031302313 has 2 divisors, whose sum is σ = 121031302314. Its totient is φ = 121031302312.

The previous prime is 121031302309. The next prime is 121031302349. The reversal of 121031302313 is 313203130121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115156386409 + 5874915904 = 339347^2 + 76648^2 .

It is a cyclic number.

It is not a de Polignac number, because 121031302313 - 2² = 121031302309 is a prime.

It is a super-2 number, since 2×121031302313² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121031302363) 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 as a sum of consecutive naturals, namely, 60515651156 + 60515651157.

It is an arithmetic number, because the mean of its divisors is an integer number (60515651157).

Almost surely, 2^121031302313 is an apocalyptic number.

It is an amenable number.

121031302313 is a deficient number, since it is larger than the sum of its proper divisors (1).

121031302313 is an equidigital number, since it uses as much as digits as its factorization.

121031302313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 121031302313 its reverse (313203130121), we get a palindrome (434234432434).

The spelling of 121031302313 in words is "one hundred twenty-one billion, thirty-one million, three hundred two thousand, three hundred thirteen".