121191490583 has 2 divisors, whose sum is σ = 121191490584. Its totient is φ = 121191490582.

The previous prime is 121191490547. The next prime is 121191490601. The reversal of 121191490583 is 385094191121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121191490583 - 2¹² = 121191486487 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121191490513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60595745291 + 60595745292.

It is an arithmetic number, because the mean of its divisors is an integer number (60595745292).

Almost surely, 2^121191490583 is an apocalyptic number.

121191490583 is a deficient number, since it is larger than the sum of its proper divisors (1).

121191490583 is an equidigital number, since it uses as much as digits as its factorization.

121191490583 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 44.

The spelling of 121191490583 in words is "one hundred twenty-one billion, one hundred ninety-one million, four hundred ninety thousand, five hundred eighty-three".