20123023223220 has 48 divisors (see below), whose sum is σ = 56344663609920. Its totient is φ = 5366120613376.

The previous prime is 20123023223197. The next prime is 20123023223231. The reversal of 20123023223220 is 2232232032102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28026019 + ... + 28735061.

It is an arithmetic number, because the mean of its divisors is an integer number (1173847158540).

Almost surely, 2^{20123023223220} is an apocalyptic number.

20123023223220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20123023223220 is an abundant number, since it is smaller than the sum of its proper divisors (36221640386700).

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

20123023223220 is a wasteful number, since it uses less digits than its factorization.

20123023223220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1182064 (or 1182062 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20123023223220 its reverse (2232232032102), we get a palindrome (22355255255322).

The spelling of 20123023223220 in words is "twenty trillion, one hundred twenty-three billion, twenty-three million, two hundred twenty-three thousand, two hundred twenty".