10023123220 has 48 divisors (see below), whose sum is σ = 23522135616. Its totient is φ = 3555872000.

The previous prime is 10023123203. The next prime is 10023123239. The reversal of 10023123220 is 2232132001.

It is a junction number, because it is equal to n+sod(n) for n = 10023123194 and 10023123203.

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, 546586 + ... + 564625.

It is an arithmetic number, because the mean of its divisors is an integer number (490044492).

Almost surely, 2^10023123220 is an apocalyptic number.

10023123220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10023123220 is an abundant number, since it is smaller than the sum of its proper divisors (13499012396).

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

10023123220 is a wasteful number, since it uses less digits than its factorization.

10023123220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111272 (or 1111270 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 10023123220 its reverse (2232132001), we get a palindrome (12255255221).

The spelling of 10023123220 in words is "ten billion, twenty-three million, one hundred twenty-three thousand, two hundred twenty".