1230123323100 has 144 divisors (see below), whose sum is σ = 4177543397888. Its totient is φ = 273571810560.

The previous prime is 1230123323087. The next prime is 1230123323111. The reversal of 1230123323100 is 13233210321.

It is a super-2 number, since 2×1230123323100² (a number of 25 digits) contains 22 as substring.

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

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7838152 + ... + 7993551.

Almost surely, 2^{1230123323100} is an apocalyptic number.

1230123323100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230123323100 is an abundant number, since it is smaller than the sum of its proper divisors (2947420074788).

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

1230123323100 is a wasteful number, since it uses less digits than its factorization.

1230123323100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15831764 (or 15831757 counting only the distinct ones).

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

Adding to 1230123323100 its reverse (13233210321), we get a palindrome (1243356533421).

The spelling of 1230123323100 in words is "one trillion, two hundred thirty billion, one hundred twenty-three million, three hundred twenty-three thousand, one hundred".