10012121369 has 2 divisors, whose sum is σ = 10012121370. Its totient is φ = 10012121368.

The previous prime is 10012121363. The next prime is 10012121377. The reversal of 10012121369 is 96312121001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7609945225 + 2402176144 = 87235^2 + 49012^2 .

It is a cyclic number.

It is not a de Polignac number, because 10012121369 - 2³² = 5717154073 is a prime.

It is a super-2 number, since 2×10012121369² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10012121363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5006060684 + 5006060685.

It is an arithmetic number, because the mean of its divisors is an integer number (5006060685).

Almost surely, 2^10012121369 is an apocalyptic number.

It is an amenable number.

10012121369 is a deficient number, since it is larger than the sum of its proper divisors (1).

10012121369 is an equidigital number, since it uses as much as digits as its factorization.

10012121369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 10012121369 in words is "ten billion, twelve million, one hundred twenty-one thousand, three hundred sixty-nine".