100323003440 has 80 divisors (see below), whose sum is σ = 254506496256. Its totient is φ = 36473798400.

The previous prime is 100323003413. The next prime is 100323003467. The reversal of 100323003440 is 44300323001.

It is an interprime number because it is at equal distance from previous prime (100323003413) and next prime (100323003467).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6513989 + ... + 6529371.

Almost surely, 2^100323003440 is an apocalyptic number.

100323003440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100323003440 is an abundant number, since it is smaller than the sum of its proper divisors (154183492816).

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

100323003440 is a wasteful number, since it uses less digits than its factorization.

100323003440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22818 (or 22812 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 100323003440 its reverse (44300323001), we get a palindrome (144623326441).

The spelling of 100323003440 in words is "one hundred billion, three hundred twenty-three million, three thousand, four hundred forty".