101216903 has 2 divisors, whose sum is σ = 101216904. Its totient is φ = 101216902.

The previous prime is 101216887. The next prime is 101216957. The reversal of 101216903 is 309612101.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (309612101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101216903 - 2⁴ = 101216887 is a prime.

It is a super-2 number, since 2×101216903² = 20489722905822818, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101216993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50608451 + 50608452.

It is an arithmetic number, because the mean of its divisors is an integer number (50608452).

Almost surely, 2^101216903 is an apocalyptic number.

101216903 is a deficient number, since it is larger than the sum of its proper divisors (1).

101216903 is an equidigital number, since it uses as much as digits as its factorization.

101216903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 101216903 is about 10060.6611611762. The cubic root of 101216903 is about 466.0340851366.

The spelling of 101216903 in words is "one hundred one million, two hundred sixteen thousand, nine hundred three".