100103132321 has 4 divisors (see below), whose sum is σ = 103554964500. Its totient is φ = 96651300144.

The previous prime is 100103132317. The next prime is 100103132341. The reversal of 100103132321 is 123231301001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68476422400 + 31626709921 = 261680^2 + 177839^2 .

It is a cyclic number.

It is not a de Polignac number, because 100103132321 - 2² = 100103132317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100103132321.

It is not an unprimeable number, because it can be changed into a prime (100103132341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1725916046 + ... + 1725916103.

It is an arithmetic number, because the mean of its divisors is an integer number (25888741125).

Almost surely, 2^100103132321 is an apocalyptic number.

It is an amenable number.

100103132321 is a deficient number, since it is larger than the sum of its proper divisors (3451832179).

100103132321 is an equidigital number, since it uses as much as digits as its factorization.

100103132321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3451832178.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 100103132321 its reverse (123231301001), we get a palindrome (223334433322).

The spelling of 100103132321 in words is "one hundred billion, one hundred three million, one hundred thirty-two thousand, three hundred twenty-one".