100038587431 has 4 divisors (see below), whose sum is σ = 100039299472. Its totient is φ = 100037875392.

The previous prime is 100038587387. The next prime is 100038587449. The reversal of 100038587431 is 134785830001.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 134785830001 = 1423 ⋅94719487.

It is a cyclic number.

It is not a de Polignac number, because 100038587431 - 2¹⁵ = 100038554663 is a prime.

It is a super-2 number, since 2×100038587431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100038587471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67146 + ... + 452311.

It is an arithmetic number, because the mean of its divisors is an integer number (25009824868).

Almost surely, 2^100038587431 is an apocalyptic number.

100038587431 is a deficient number, since it is larger than the sum of its proper divisors (712041).

100038587431 is an equidigital number, since it uses as much as digits as its factorization.

100038587431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712040.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 100038587431 in words is "one hundred billion, thirty-eight million, five hundred eighty-seven thousand, four hundred thirty-one".