2042121042023 has 4 divisors (see below), whose sum is σ = 2042130167880. Its totient is φ = 2042111916168.

The previous prime is 2042121042011. The next prime is 2042121042041. The reversal of 2042121042023 is 3202401212402.

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

It is a cyclic number.

It is not a de Polignac number, because 2042121042023 - 2⁴ = 2042121042007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2042121042023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042121042053) 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, 4218608 + ... + 4677701.

It is an arithmetic number, because the mean of its divisors is an integer number (510532541970).

Almost surely, 2^{2042121042023} is an apocalyptic number.

2042121042023 is a deficient number, since it is larger than the sum of its proper divisors (9125857).

2042121042023 is an equidigital number, since it uses as much as digits as its factorization.

2042121042023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9125856.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 2042121042023 its reverse (3202401212402), we get a palindrome (5244522254425).

The spelling of 2042121042023 in words is "two trillion, forty-two billion, one hundred twenty-one million, forty-two thousand, twenty-three".