121230020441279 has 2 divisors, whose sum is σ = 121230020441280. Its totient is φ = 121230020441278.

The previous prime is 121230020441269. The next prime is 121230020441351. The reversal of 121230020441279 is 972144020032121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121230020441279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121230020441269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60615010220639 + 60615010220640.

It is an arithmetic number, because the mean of its divisors is an integer number (60615010220640).

Almost surely, 2^{121230020441279} is an apocalyptic number.

121230020441279 is a deficient number, since it is larger than the sum of its proper divisors (1).

121230020441279 is an equidigital number, since it uses as much as digits as its factorization.

121230020441279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 38.

The spelling of 121230020441279 in words is "one hundred twenty-one trillion, two hundred thirty billion, twenty million, four hundred forty-one thousand, two hundred seventy-nine".