2123003113021 has 8 divisors (see below), whose sum is σ = 2426392352384. Its totient is φ = 1819639643760.

The previous prime is 2123003113019. The next prime is 2123003113043. The reversal of 2123003113021 is 1203113003212.

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

It is a cyclic number.

It is not a de Polignac number, because 2123003113021 - 2¹ = 2123003113019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2123003113021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123003113001) 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, 6265665 + ... + 6595798.

It is an arithmetic number, because the mean of its divisors is an integer number (303299044048).

Almost surely, 2^{2123003113021} is an apocalyptic number.

It is an amenable number.

2123003113021 is a deficient number, since it is larger than the sum of its proper divisors (303389239363).

2123003113021 is a wasteful number, since it uses less digits than its factorization.

2123003113021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12885051.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 2123003113021 its reverse (1203113003212), we get a palindrome (3326116116233).

The spelling of 2123003113021 in words is "two trillion, one hundred twenty-three billion, three million, one hundred thirteen thousand, twenty-one".