100311403 has 4 divisors (see below), whose sum is σ = 103022560. Its totient is φ = 97600248.

The previous prime is 100311361. The next prime is 100311413. The reversal of 100311403 is 304113001.

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

It is a cyclic number.

It is not a de Polignac number, because 100311403 - 2¹³ = 100303211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100311413) 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, 1355523 + ... + 1355596.

It is an arithmetic number, because the mean of its divisors is an integer number (25755640).

Almost surely, 2^100311403 is an apocalyptic number.

100311403 is a deficient number, since it is larger than the sum of its proper divisors (2711157).

100311403 is an equidigital number, since it uses as much as digits as its factorization.

100311403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2711156.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 100311403 is about 10015.5580473581. The cubic root of 100311403 is about 464.6401856724.

Adding to 100311403 its reverse (304113001), we get a palindrome (404424404).

The spelling of 100311403 in words is "one hundred million, three hundred eleven thousand, four hundred three".