101243163 has 12 divisors (see below), whose sum is σ = 157030440. Its totient is φ = 57853152.

The previous prime is 101243159. The next prime is 101243167. The reversal of 101243163 is 361342101.

It is an interprime number because it is at equal distance from previous prime (101243159) and next prime (101243167).

It is not a de Polignac number, because 101243163 - 2² = 101243159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (101243167) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 344218 + ... + 344511.

It is an arithmetic number, because the mean of its divisors is an integer number (13085870).

Almost surely, 2^101243163 is an apocalyptic number.

101243163 is a deficient number, since it is larger than the sum of its proper divisors (55787277).

101243163 is an equidigital number, since it uses as much as digits as its factorization.

101243163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688746 (or 688739 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 101243163 is about 10061.9661597523. The cubic root of 101243163 is about 466.0743847193.

Adding to 101243163 its reverse (361342101), we get a palindrome (462585264).

The spelling of 101243163 in words is "one hundred one million, two hundred forty-three thousand, one hundred sixty-three".