2121010022023 has 4 divisors (see below), whose sum is σ = 2166137894880. Its totient is φ = 2075882149168.

The previous prime is 2121010022011. The next prime is 2121010022029. The reversal of 2121010022023 is 3202200101212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2121010022023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2121010021988 and 2121010022006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121010022029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22563936358 + ... + 22563936451.

It is an arithmetic number, because the mean of its divisors is an integer number (541534473720).

Almost surely, 2^{2121010022023} is an apocalyptic number.

2121010022023 is a deficient number, since it is larger than the sum of its proper divisors (45127872857).

2121010022023 is an equidigital number, since it uses as much as digits as its factorization.

2121010022023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45127872856.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2121010022023 its reverse (3202200101212), we get a palindrome (5323210123235).

The spelling of 2121010022023 in words is "two trillion, one hundred twenty-one billion, ten million, twenty-two thousand, twenty-three".