100031401 has 4 divisors (see below), whose sum is σ = 100310400. Its totient is φ = 99752404.

The previous prime is 100031377. The next prime is 100031413. The reversal of 100031401 is 104130001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 100031401 - 2¹¹ = 100029353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100031471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138961 + ... + 139678.

It is an arithmetic number, because the mean of its divisors is an integer number (25077600).

Almost surely, 2^100031401 is an apocalyptic number.

It is an amenable number.

100031401 is a deficient number, since it is larger than the sum of its proper divisors (278999).

100031401 is an equidigital number, since it uses as much as digits as its factorization.

100031401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278998.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 100031401 is about 10001.5699267665. The cubic root of 100031401 is about 464.2074617873.

Adding to 100031401 its reverse (104130001), we get a palindrome (204161402).

The spelling of 100031401 in words is "one hundred million, thirty-one thousand, four hundred one".