121321103369 has 2 divisors, whose sum is σ = 121321103370. Its totient is φ = 121321103368.

The previous prime is 121321103353. The next prime is 121321103377. The reversal of 121321103369 is 963301123121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100768153600 + 20552949769 = 317440^2 + 143363^2 .

It is a cyclic number.

It is not a de Polignac number, because 121321103369 - 2⁴ = 121321103353 is a prime.

It is a super-2 number, since 2×121321103369² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121321103339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60660551684 + 60660551685.

It is an arithmetic number, because the mean of its divisors is an integer number (60660551685).

Almost surely, 2^121321103369 is an apocalyptic number.

It is an amenable number.

121321103369 is a deficient number, since it is larger than the sum of its proper divisors (1).

121321103369 is an equidigital number, since it uses as much as digits as its factorization.

121321103369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 32.

The spelling of 121321103369 in words is "one hundred twenty-one billion, three hundred twenty-one million, one hundred three thousand, three hundred sixty-nine".