20042214021023 has 4 divisors (see below), whose sum is σ = 20043477812280. Its totient is φ = 20040950229768.

The previous prime is 20042214020993. The next prime is 20042214021149. The reversal of 20042214021023 is 32012041224002.

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 20042214021023 - 2⁸ = 20042214020767 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 20042214021023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20042214021623) 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, 631871840 + ... + 631903557.

It is an arithmetic number, because the mean of its divisors is an integer number (5010869453070).

Almost surely, 2^{20042214021023} is an apocalyptic number.

20042214021023 is a deficient number, since it is larger than the sum of its proper divisors (1263791257).

20042214021023 is a wasteful number, since it uses less digits than its factorization.

20042214021023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263791256.

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

Adding to 20042214021023 its reverse (32012041224002), we get a palindrome (52054255245025).

The spelling of 20042214021023 in words is "twenty trillion, forty-two billion, two hundred fourteen million, twenty-one thousand, twenty-three".