20023131119 has 4 divisors (see below), whose sum is σ = 20150667144. Its totient is φ = 19895595096.

The previous prime is 20023131109. The next prime is 20023131127. The reversal of 20023131119 is 91113132002.

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 20023131119 - 2²⁴ = 20006353903 is a prime.

It is a super-2 number, since 2×20023131119² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20023131094 and 20023131103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023131109) 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, 63767777 + ... + 63768090.

It is an arithmetic number, because the mean of its divisors is an integer number (5037666786).

Almost surely, 2^20023131119 is an apocalyptic number.

20023131119 is a deficient number, since it is larger than the sum of its proper divisors (127536025).

20023131119 is a wasteful number, since it uses less digits than its factorization.

20023131119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127536024.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 20023131119 in words is "twenty billion, twenty-three million, one hundred thirty-one thousand, one hundred nineteen".