121003203211223 has 2 divisors, whose sum is σ = 121003203211224. Its totient is φ = 121003203211222.

The previous prime is 121003203211217. The next prime is 121003203211249. The reversal of 121003203211223 is 322112302300121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121003203211223 - 2⁶ = 121003203211159 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 (121003203211123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60501601605611 + 60501601605612.

It is an arithmetic number, because the mean of its divisors is an integer number (60501601605612).

Almost surely, 2^{121003203211223} is an apocalyptic number.

121003203211223 is a deficient number, since it is larger than the sum of its proper divisors (1).

121003203211223 is an equidigital number, since it uses as much as digits as its factorization.

121003203211223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 121003203211223 its reverse (322112302300121), we get a palindrome (443115505511344).

The spelling of 121003203211223 in words is "one hundred twenty-one trillion, three billion, two hundred three million, two hundred eleven thousand, two hundred twenty-three".