103129211 has 2 divisors, whose sum is σ = 103129212. Its totient is φ = 103129210.

The previous prime is 103129199. The next prime is 103129241. The reversal of 103129211 is 112921301.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103129211 is a prime.

It is a super-2 number, since 2×103129211² = 21271268322965042, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (103129241) 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, 51564605 + 51564606.

It is an arithmetic number, because the mean of its divisors is an integer number (51564606).

Almost surely, 2^103129211 is an apocalyptic number.

103129211 is a deficient number, since it is larger than the sum of its proper divisors (1).

103129211 is an equidigital number, since it uses as much as digits as its factorization.

103129211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 103129211 is about 10155.2553389858. The cubic root of 103129211 is about 468.9507467034.

The spelling of 103129211 in words is "one hundred three million, one hundred twenty-nine thousand, two hundred eleven".