121011312319 has 2 divisors, whose sum is σ = 121011312320. Its totient is φ = 121011312318.

The previous prime is 121011312287. The next prime is 121011312371. The reversal of 121011312319 is 913213110121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121011312319 - 2⁵ = 121011312287 is a prime.

It is a super-2 number, since 2×121011312319² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121011312293 and 121011312302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121011322319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60505656159 + 60505656160.

It is an arithmetic number, because the mean of its divisors is an integer number (60505656160).

Almost surely, 2^121011312319 is an apocalyptic number.

121011312319 is a deficient number, since it is larger than the sum of its proper divisors (1).

121011312319 is an equidigital number, since it uses as much as digits as its factorization.

121011312319 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 25.

The spelling of 121011312319 in words is "one hundred twenty-one billion, eleven million, three hundred twelve thousand, three hundred nineteen".