1000403443100 has 72 divisors (see below), whose sum is σ = 2174085151728. Its totient is φ = 399570278400.

The previous prime is 1000403443087. The next prime is 1000403443111. The reversal of 1000403443100 is 13443040001.

It is a happy number.

It is a super-2 number, since 2×1000403443100² (a number of 25 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 313899707 + ... + 313902893.

Almost surely, 2^{1000403443100} is an apocalyptic number.

1000403443100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000403443100 is an abundant number, since it is smaller than the sum of its proper divisors (1173681708628).

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

1000403443100 is a wasteful number, since it uses less digits than its factorization.

1000403443100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6855 (or 6848 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1000403443100 its reverse (13443040001), we get a palindrome (1013846483101).

The spelling of 1000403443100 in words is "one trillion, four hundred three million, four hundred forty-three thousand, one hundred".