20110122023 has 4 divisors (see below), whose sum is σ = 20124255648. Its totient is φ = 20095988400.

The previous prime is 20110122017. The next prime is 20110122029. The reversal of 20110122023 is 32022101102.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (20110122017) and next prime (20110122029).

It is a cyclic number.

It is not a de Polignac number, because 20110122023 - 2³⁰ = 19036380199 is a prime.

It is a super-2 number, since 2×20110122023² (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 = 20110121989 and 20110122007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110122029) 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, 7064678 + ... + 7067523.

It is an arithmetic number, because the mean of its divisors is an integer number (5031063912).

Almost surely, 2^20110122023 is an apocalyptic number.

20110122023 is a deficient number, since it is larger than the sum of its proper divisors (14133625).

20110122023 is a wasteful number, since it uses less digits than its factorization.

20110122023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14133624.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20110122023 its reverse (32022101102), we get a palindrome (52132223125).

The spelling of 20110122023 in words is "twenty billion, one hundred ten million, one hundred twenty-two thousand, twenty-three".