121551201858283 has 2 divisors, whose sum is σ = 121551201858284. Its totient is φ = 121551201858282.

The previous prime is 121551201858187. The next prime is 121551201858349. The reversal of 121551201858283 is 382858102155121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121551201858283 - 2⁴¹ = 119352178602731 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121551201858283.

It is not a weakly prime, because it can be changed into another prime (121551201855283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60775600929141 + 60775600929142.

It is an arithmetic number, because the mean of its divisors is an integer number (60775600929142).

Almost surely, 2^{121551201858283} is an apocalyptic number.

121551201858283 is a deficient number, since it is larger than the sum of its proper divisors (1).

121551201858283 is an equidigital number, since it uses as much as digits as its factorization.

121551201858283 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536000, while the sum is 52.

The spelling of 121551201858283 in words is "one hundred twenty-one trillion, five hundred fifty-one billion, two hundred one million, eight hundred fifty-eight thousand, two hundred eighty-three".