2121010110023 has 8 divisors (see below), whose sum is σ = 2483133787680. Its totient is φ = 1773666990720.

The previous prime is 2121010109989. The next prime is 2121010110049. The reversal of 2121010110023 is 3200110101212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2121010110023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121010410023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3695139278 + ... + 3695139851.

It is an arithmetic number, because the mean of its divisors is an integer number (310391723460).

Almost surely, 2^{2121010110023} is an apocalyptic number.

2121010110023 is a deficient number, since it is larger than the sum of its proper divisors (362123677657).

2121010110023 is an equidigital number, since it uses as much as digits as its factorization.

2121010110023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7390279177.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 2121010110023 its reverse (3200110101212), we get a palindrome (5321120211235).

The spelling of 2121010110023 in words is "two trillion, one hundred twenty-one billion, ten million, one hundred ten thousand, twenty-three".