123331221030 has 32 divisors (see below), whose sum is σ = 296006104800. Its totient is φ = 32887084032.

The previous prime is 123331221029. The next prime is 123331221047. The reversal of 123331221030 is 30122133321.

It is a junction number, because it is equal to n+sod(n) for n = 123331220988 and 123331221006.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 956016 + ... + 1077324.

It is an arithmetic number, because the mean of its divisors is an integer number (9250190775).

Almost surely, 2^123331221030 is an apocalyptic number.

123331221030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123331221030 is an abundant number, since it is smaller than the sum of its proper divisors (172674883770).

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

123331221030 is a wasteful number, since it uses less digits than its factorization.

123331221030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155208.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 123331221030 its reverse (30122133321), we get a palindrome (153453354351).

The spelling of 123331221030 in words is "one hundred twenty-three billion, three hundred thirty-one million, two hundred twenty-one thousand, thirty".