43010121 has 16 divisors (see below), whose sum is σ = 71497728. Its totient is φ = 22342800.

The previous prime is 43010117. The next prime is 43010131. The reversal of 43010121 is 12101034.

It is a happy number.

It is not a de Polignac number, because 43010121 - 2² = 43010117 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 43010097 and 43010106.

It is not an unprimeable number, because it can be changed into a prime (43010101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92865 + ... + 93326.

It is an arithmetic number, because the mean of its divisors is an integer number (4468608).

Almost surely, 2^43010121 is an apocalyptic number.

It is an amenable number.

43010121 is a deficient number, since it is larger than the sum of its proper divisors (28487607).

43010121 is a wasteful number, since it uses less digits than its factorization.

43010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186212.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 43010121 is about 6558.2101979122. The cubic root of 43010121 is about 350.3672906202.

Adding to 43010121 its reverse (12101034), we get a palindrome (55111155).

The spelling of 43010121 in words is "forty-three million, ten thousand, one hundred twenty-one".