103329991 has 2 divisors, whose sum is σ = 103329992. Its totient is φ = 103329990.

The previous prime is 103329983. The next prime is 103329997. The reversal of 103329991 is 199923301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 103329991 - 2³ = 103329983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103329991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103329997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51664995 + 51664996.

It is an arithmetic number, because the mean of its divisors is an integer number (51664996).

Almost surely, 2^103329991 is an apocalyptic number.

103329991 is a deficient number, since it is larger than the sum of its proper divisors (1).

103329991 is an equidigital number, since it uses as much as digits as its factorization.

103329991 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13122, while the sum is 37.

The square root of 103329991 is about 10165.1360541805. The cubic root of 103329991 is about 469.2548793950.

The spelling of 103329991 in words is "one hundred three million, three hundred twenty-nine thousand, nine hundred ninety-one".