100125043 has 2 divisors, whose sum is σ = 100125044. Its totient is φ = 100125042.

The previous prime is 100125029. The next prime is 100125061. The reversal of 100125043 is 340521001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100125043 - 2²⁵ = 66570611 is a prime.

It is not a weakly prime, because it can be changed into another prime (100125013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50062521 + 50062522.

It is an arithmetic number, because the mean of its divisors is an integer number (50062522).

Almost surely, 2^100125043 is an apocalyptic number.

100125043 is a deficient number, since it is larger than the sum of its proper divisors (1).

100125043 is an equidigital number, since it uses as much as digits as its factorization.

100125043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 100125043 is about 10006.2501967520. The cubic root of 100125043 is about 464.3522688428.

Adding to 100125043 its reverse (340521001), we get a palindrome (440646044).

The spelling of 100125043 in words is "one hundred million, one hundred twenty-five thousand, forty-three".