2121303300023 has 2 divisors, whose sum is σ = 2121303300024. Its totient is φ = 2121303300022.

The previous prime is 2121303300019. The next prime is 2121303300047. The reversal of 2121303300023 is 3200033031212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2121303300023 - 2² = 2121303300019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2121303299968 and 2121303300004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121303300013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060651650011 + 1060651650012.

It is an arithmetic number, because the mean of its divisors is an integer number (1060651650012).

Almost surely, 2^{2121303300023} is an apocalyptic number.

2121303300023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121303300023 is an equidigital number, since it uses as much as digits as its factorization.

2121303300023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 2121303300023 its reverse (3200033031212), we get a palindrome (5321336331235).

It can be divided in two parts, 212130 and 3300023, that added together give a palindrome (3512153).

The spelling of 2121303300023 in words is "two trillion, one hundred twenty-one billion, three hundred three million, three hundred thousand, twenty-three".