100113143 has 4 divisors (see below), whose sum is σ = 107814168. Its totient is φ = 92412120.

The previous prime is 100113067. The next prime is 100113173. The reversal of 100113143 is 341311001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 341311001 = 5237 ⋅65173.

It is a cyclic number.

It is not a de Polignac number, because 100113143 - 2¹² = 100109047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100113173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3850493 + ... + 3850518.

It is an arithmetic number, because the mean of its divisors is an integer number (26953542).

Almost surely, 2^100113143 is an apocalyptic number.

100113143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

100113143 is a deficient number, since it is larger than the sum of its proper divisors (7701025).

100113143 is an equidigital number, since it uses as much as digits as its factorization.

100113143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7701024.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 100113143 is about 10005.6555507373. The cubic root of 100113143 is about 464.3338718106. Note that the first 3 decimals are identical.

Adding to 100113143 its reverse (341311001), we get a palindrome (441424144).

The spelling of 100113143 in words is "one hundred million, one hundred thirteen thousand, one hundred forty-three".