103878031 has 2 divisors, whose sum is σ = 103878032. Its totient is φ = 103878030.

The previous prime is 103878017. The next prime is 103878053. The reversal of 103878031 is 130878301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103878031 - 2¹³ = 103869839 is a prime.

It is a super-2 number, since 2×103878031² = 21581290648873922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103877984 and 103878002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103878001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51939015 + 51939016.

It is an arithmetic number, because the mean of its divisors is an integer number (51939016).

Almost surely, 2^103878031 is an apocalyptic number.

103878031 is a deficient number, since it is larger than the sum of its proper divisors (1).

103878031 is an equidigital number, since it uses as much as digits as its factorization.

103878031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 103878031 is about 10192.0572506241. The cubic root of 103878031 is about 470.0830259241.

The spelling of 103878031 in words is "one hundred three million, eight hundred seventy-eight thousand, thirty-one".