123022112020 has 24 divisors (see below), whose sum is σ = 258576532704. Its totient is φ = 49165016736.

The previous prime is 123022111987. The next prime is 123022112023. The reversal of 123022112020 is 20211220321.

It is a happy number.

It is a super-2 number, since 2×123022112020² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123022111985 and 123022112003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123022112023) 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, 2716234 + ... + 2761153.

It is an arithmetic number, because the mean of its divisors is an integer number (10774022196).

Almost surely, 2^123022112020 is an apocalyptic number.

123022112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123022112020 is an abundant number, since it is smaller than the sum of its proper divisors (135554420684).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123022112020 is a wasteful number, since it uses less digits than its factorization.

123022112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5478519 (or 5478517 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 123022112020 its reverse (20211220321), we get a palindrome (143233332341).

The spelling of 123022112020 in words is "one hundred twenty-three billion, twenty-two million, one hundred twelve thousand, twenty".