100320123000 has 128 divisors (see below), whose sum is σ = 323095818240. Its totient is φ = 25889040000.

The previous prime is 100320122989. The next prime is 100320123011. The reversal of 100320123000 is 321023001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (100320122989) and next prime (100320123011).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 446356 + ... + 632355.

It is an arithmetic number, because the mean of its divisors is an integer number (2524186080).

Almost surely, 2^100320123000 is an apocalyptic number.

100320123000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100320123000 is an abundant number, since it is smaller than the sum of its proper divisors (222775695240).

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

100320123000 is a wasteful number, since it uses less digits than its factorization.

100320123000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078766 (or 1078752 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 100320123000 its reverse (321023001), we get a palindrome (100641146001).

Subtracting from 100320123000 its reverse (321023001), we obtain a palindrome (99999099999).

It can be divided in two parts, 1003201 and 23000, that added together give a palindrome (1026201).

The spelling of 100320123000 in words is "one hundred billion, three hundred twenty million, one hundred twenty-three thousand".