103040440031 has 4 divisors (see below), whose sum is σ = 103064423952. Its totient is φ = 103016456112.

The previous prime is 103040439977. The next prime is 103040440033. The reversal of 103040440031 is 130044040301.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103040440031 is a prime.

It is a super-2 number, since 2×103040440031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103040439985 and 103040440012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103040440033) 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, 11985515 + ... + 11994108.

It is an arithmetic number, because the mean of its divisors is an integer number (25766105988).

Almost surely, 2^103040440031 is an apocalyptic number.

103040440031 is a deficient number, since it is larger than the sum of its proper divisors (23983921).

103040440031 is an equidigital number, since it uses as much as digits as its factorization.

103040440031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23983920.

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

Adding to 103040440031 its reverse (130044040301), we get a palindrome (233084480332).

The spelling of 103040440031 in words is "one hundred three billion, forty million, four hundred forty thousand, thirty-one".