121131023299799 has 2 divisors, whose sum is σ = 121131023299800. Its totient is φ = 121131023299798.

The previous prime is 121131023299757. The next prime is 121131023299807. The reversal of 121131023299799 is 997992320131121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121131023299799 - 2²⁰ = 121131022251223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121131023293799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60565511649899 + 60565511649900.

It is an arithmetic number, because the mean of its divisors is an integer number (60565511649900).

Almost surely, 2^{121131023299799} is an apocalyptic number.

121131023299799 is a deficient number, since it is larger than the sum of its proper divisors (1).

121131023299799 is an equidigital number, since it uses as much as digits as its factorization.

121131023299799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3306744, while the sum is 59.

The spelling of 121131023299799 in words is "one hundred twenty-one trillion, one hundred thirty-one billion, twenty-three million, two hundred ninety-nine thousand, seven hundred ninety-nine".