121443555283 has 2 divisors, whose sum is σ = 121443555284. Its totient is φ = 121443555282.

The previous prime is 121443555221. The next prime is 121443555301. The reversal of 121443555283 is 382555344121.

It is a strong prime.

It is an emirp because it is prime and its reverse (382555344121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121443555283 is a prime.

It is not a weakly prime, because it can be changed into another prime (121443505283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60721777641 + 60721777642.

It is an arithmetic number, because the mean of its divisors is an integer number (60721777642).

Almost surely, 2^121443555283 is an apocalyptic number.

121443555283 is a deficient number, since it is larger than the sum of its proper divisors (1).

121443555283 is an equidigital number, since it uses as much as digits as its factorization.

121443555283 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576000, while the sum is 43.

The spelling of 121443555283 in words is "one hundred twenty-one billion, four hundred forty-three million, five hundred fifty-five thousand, two hundred eighty-three".