123301223220 has 96 divisors (see below), whose sum is σ = 394817181696. Its totient is φ = 28165046400.

The previous prime is 123301223191. The next prime is 123301223239. The reversal of 123301223220 is 22322103321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 566385 + ... + 753255.

It is an arithmetic number, because the mean of its divisors is an integer number (4112678976).

Almost surely, 2^123301223220 is an apocalyptic number.

123301223220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123301223220 is an abundant number, since it is smaller than the sum of its proper divisors (271515958476).

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

123301223220 is a wasteful number, since it uses less digits than its factorization.

123301223220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188461 (or 188459 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 123301223220 its reverse (22322103321), we get a palindrome (145623326541).

The spelling of 123301223220 in words is "one hundred twenty-three billion, three hundred one million, two hundred twenty-three thousand, two hundred twenty".