121013021023243 has 2 divisors, whose sum is σ = 121013021023244. Its totient is φ = 121013021023242.

The previous prime is 121013021023211. The next prime is 121013021023327. The reversal of 121013021023243 is 342320120310121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121013021023243 - 2⁵ = 121013021023211 is a prime.

It is not a weakly prime, because it can be changed into another prime (121013021023343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60506510511621 + 60506510511622.

It is an arithmetic number, because the mean of its divisors is an integer number (60506510511622).

Almost surely, 2^{121013021023243} is an apocalyptic number.

121013021023243 is a deficient number, since it is larger than the sum of its proper divisors (1).

121013021023243 is an equidigital number, since it uses as much as digits as its factorization.

121013021023243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 121013021023243 its reverse (342320120310121), we get a palindrome (463333141333364).

The spelling of 121013021023243 in words is "one hundred twenty-one trillion, thirteen billion, twenty-one million, twenty-three thousand, two hundred forty-three".