121010031313 has 2 divisors, whose sum is σ = 121010031314. Its totient is φ = 121010031312.

The previous prime is 121010031251. The next prime is 121010031343. The reversal of 121010031313 is 313130010121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116487737809 + 4522293504 = 341303^2 + 67248^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121010031313 is a prime.

It is not a weakly prime, because it can be changed into another prime (121010031343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505015656 + 60505015657.

It is an arithmetic number, because the mean of its divisors is an integer number (60505015657).

Almost surely, 2^121010031313 is an apocalyptic number.

It is an amenable number.

121010031313 is a deficient number, since it is larger than the sum of its proper divisors (1).

121010031313 is an equidigital number, since it uses as much as digits as its factorization.

121010031313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 121010031313 its reverse (313130010121), we get a palindrome (434140041434).

The spelling of 121010031313 in words is "one hundred twenty-one billion, ten million, thirty-one thousand, three hundred thirteen".