123023301320 has 32 divisors (see below), whose sum is σ = 277042603320. Its totient is φ = 49166622720.

The previous prime is 123023301281. The next prime is 123023301337. The reversal of 123023301320 is 23103320321.

It can be written as a sum of positive squares in 4 ways, for example, as 119911223524 + 3112077796 = 346282^2 + 55786^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 123023301292 and 123023301301.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1287611 + ... + 1379850.

Almost surely, 2^123023301320 is an apocalyptic number.

123023301320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123023301320 is an abundant number, since it is smaller than the sum of its proper divisors (154019302000).

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

123023301320 is a wasteful number, since it uses less digits than its factorization.

123023301320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2668625 (or 2668621 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 123023301320 its reverse (23103320321), we get a palindrome (146126621641).

The spelling of 123023301320 in words is "one hundred twenty-three billion, twenty-three million, three hundred one thousand, three hundred twenty".