20042111323 has 8 divisors (see below), whose sum is σ = 22328082000. Its totient is φ = 17862464928.

The previous prime is 20042111317. The next prime is 20042111387. The reversal of 20042111323 is 32311124002.

It is a happy number.

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-20042111323 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 20042111323.

It is not an unprimeable number, because it can be changed into a prime (20042141323) 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, 26580673 + ... + 26581426.

It is an arithmetic number, because the mean of its divisors is an integer number (2791010250).

Almost surely, 2^20042111323 is an apocalyptic number.

20042111323 is a deficient number, since it is larger than the sum of its proper divisors (2285970677).

20042111323 is a wasteful number, since it uses less digits than its factorization.

20042111323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53162141.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20042111323 its reverse (32311124002), we get a palindrome (52353235325).

The spelling of 20042111323 in words is "twenty billion, forty-two million, one hundred eleven thousand, three hundred twenty-three".