123122401320 has 64 divisors (see below), whose sum is σ = 377226097920. Its totient is φ = 32134072064.

The previous prime is 123122401271. The next prime is 123122401321. The reversal of 123122401320 is 23104221321.

It is not an unprimeable number, because it can be changed into a prime (123122401321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10909467 + ... + 10920746.

It is an arithmetic number, because the mean of its divisors is an integer number (5894157780).

Almost surely, 2^123122401320 is an apocalyptic number.

123122401320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123122401320 is an abundant number, since it is smaller than the sum of its proper divisors (254103696600).

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

123122401320 is a wasteful number, since it uses less digits than its factorization.

123122401320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21830274 (or 21830270 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 123122401320 its reverse (23104221321), we get a palindrome (146226622641).

The spelling of 123122401320 in words is "one hundred twenty-three billion, one hundred twenty-two million, four hundred one thousand, three hundred twenty".