103878431 has 2 divisors, whose sum is σ = 103878432. Its totient is φ = 103878430.

The previous prime is 103878421. The next prime is 103878451. The reversal of 103878431 is 134878301.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103878431 is a prime.

It is a super-2 number, since 2×103878431² = 21581456854043522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 103878391 and 103878400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103878421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51939215 + 51939216.

It is an arithmetic number, because the mean of its divisors is an integer number (51939216).

Almost surely, 2^103878431 is an apocalyptic number.

103878431 is a deficient number, since it is larger than the sum of its proper divisors (1).

103878431 is an equidigital number, since it uses as much as digits as its factorization.

103878431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 103878431 is about 10192.0768737289. The cubic root of 103878431 is about 470.0836293015.

The spelling of 103878431 in words is "one hundred three million, eight hundred seventy-eight thousand, four hundred thirty-one".