121031112313 has 2 divisors, whose sum is σ = 121031112314. Its totient is φ = 121031112312.

The previous prime is 121031112287. The next prime is 121031112341. The reversal of 121031112313 is 313211130121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109079593984 + 11951518329 = 330272^2 + 109323^2 .

It is a cyclic number.

It is not a de Polignac number, because 121031112313 - 2⁹ = 121031111801 is a prime.

It is not a weakly prime, because it can be changed into another prime (121031112343) 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, 60515556156 + 60515556157.

It is an arithmetic number, because the mean of its divisors is an integer number (60515556157).

Almost surely, 2^121031112313 is an apocalyptic number.

It is an amenable number.

121031112313 is a deficient number, since it is larger than the sum of its proper divisors (1).

121031112313 is an equidigital number, since it uses as much as digits as its factorization.

121031112313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 121031112313 its reverse (313211130121), we get a palindrome (434242242434).

The spelling of 121031112313 in words is "one hundred twenty-one billion, thirty-one million, one hundred twelve thousand, three hundred thirteen".