123231300221 has 8 divisors (see below), whose sum is σ = 130507749504. Its totient is φ = 115957912000.

The previous prime is 123231300217. The next prime is 123231300259. The reversal of 123231300221 is 122003132321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123231300221 - 2² = 123231300217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123231300193 and 123231300202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123231306221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 682115 + ... + 843648.

It is an arithmetic number, because the mean of its divisors is an integer number (16313468688).

Almost surely, 2^123231300221 is an apocalyptic number.

It is an amenable number.

123231300221 is a deficient number, since it is larger than the sum of its proper divisors (7276449283).

123231300221 is a wasteful number, since it uses less digits than its factorization.

123231300221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530531.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 123231300221 its reverse (122003132321), we get a palindrome (245234432542).

The spelling of 123231300221 in words is "one hundred twenty-three billion, two hundred thirty-one million, three hundred thousand, two hundred twenty-one".