2121023210023 has 2 divisors, whose sum is σ = 2121023210024. Its totient is φ = 2121023210022.

The previous prime is 2121023210011. The next prime is 2121023210041. The reversal of 2121023210023 is 3200123201212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2121023210023 - 2⁹ = 2121023209511 is a prime.

It is a super-3 number, since 3×2121023210023³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121023210003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060511605011 + 1060511605012.

It is an arithmetic number, because the mean of its divisors is an integer number (1060511605012).

Almost surely, 2^{2121023210023} is an apocalyptic number.

2121023210023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121023210023 is an equidigital number, since it uses as much as digits as its factorization.

2121023210023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 2121023210023 its reverse (3200123201212), we get a palindrome (5321146411235).

The spelling of 2121023210023 in words is "two trillion, one hundred twenty-one billion, twenty-three million, two hundred ten thousand, twenty-three".