78331103 has 2 divisors, whose sum is σ = 78331104. Its totient is φ = 78331102.

The previous prime is 78331081. The next prime is 78331111. The reversal of 78331103 is 30113387.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 78331103 - 2⁶ = 78331039 is a prime.

It is a super-2 number, since 2×78331103² = 12271523394393218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78331153) 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 as a sum of consecutive naturals, namely, 39165551 + 39165552.

It is an arithmetic number, because the mean of its divisors is an integer number (39165552).

Almost surely, 2^78331103 is an apocalyptic number.

78331103 is a deficient number, since it is larger than the sum of its proper divisors (1).

78331103 is an equidigital number, since it uses as much as digits as its factorization.

78331103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 78331103 is about 8850.4860318516. The cubic root of 78331103 is about 427.8695831573.

The spelling of 78331103 in words is "seventy-eight million, three hundred thirty-one thousand, one hundred three".