123001221330 has 64 divisors (see below), whose sum is σ = 353234286720. Its totient is φ = 30277222848.

The previous prime is 123001221311. The next prime is 123001221331. The reversal of 123001221330 is 33122100321.

123001221330 is a `hidden beast` number, since 1 + 2 + 300 + 12 + 21 + 330 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (123001221331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17518032 + ... + 17525051.

It is an arithmetic number, because the mean of its divisors is an integer number (5519285730).

Almost surely, 2^123001221330 is an apocalyptic number.

123001221330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123001221330 is an abundant number, since it is smaller than the sum of its proper divisors (230233065390).

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

123001221330 is a wasteful number, since it uses less digits than its factorization.

123001221330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35043112 (or 35043106 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 123001221330 its reverse (33122100321), we get a palindrome (156123321651).

The spelling of 123001221330 in words is "one hundred twenty-three billion, one million, two hundred twenty-one thousand, three hundred thirty".