129401303 has 2 divisors, whose sum is σ = 129401304. Its totient is φ = 129401302.

The previous prime is 129401287. The next prime is 129401309. The reversal of 129401303 is 303104921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129401303 - 2⁴ = 129401287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (129401309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64700651 + 64700652.

It is an arithmetic number, because the mean of its divisors is an integer number (64700652).

Almost surely, 2^129401303 is an apocalyptic number.

129401303 is a deficient number, since it is larger than the sum of its proper divisors (1).

129401303 is an equidigital number, since it uses as much as digits as its factorization.

129401303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 129401303 is about 11375.4693529542. The cubic root of 129401303 is about 505.8008441513.

The spelling of 129401303 in words is "one hundred twenty-nine million, four hundred one thousand, three hundred three".