121332100011391 has 2 divisors, whose sum is σ = 121332100011392. Its totient is φ = 121332100011390.

The previous prime is 121332100011383. The next prime is 121332100011401. The reversal of 121332100011391 is 193110001233121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121332100011391 - 2³ = 121332100011383 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121332100011791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60666050005695 + 60666050005696.

It is an arithmetic number, because the mean of its divisors is an integer number (60666050005696).

Almost surely, 2^{121332100011391} is an apocalyptic number.

121332100011391 is a deficient number, since it is larger than the sum of its proper divisors (1).

121332100011391 is an equidigital number, since it uses as much as digits as its factorization.

121332100011391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 28.

The spelling of 121332100011391 in words is "one hundred twenty-one trillion, three hundred thirty-two billion, one hundred million, eleven thousand, three hundred ninety-one".