10040121 has 72 divisors (see below), whose sum is σ = 19184256. Its totient is φ = 4942080.

The previous prime is 10040117. The next prime is 10040123. The reversal of 10040121 is 12104001.

It is a happy number.

10040121 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10040121 - 2² = 10040117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10040123) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 244861 + ... + 244901.

It is an arithmetic number, because the mean of its divisors is an integer number (266448).

Almost surely, 2^10040121 is an apocalyptic number.

It is an amenable number.

10040121 is a deficient number, since it is larger than the sum of its proper divisors (9144135).

10040121 is a wasteful number, since it uses less digits than its factorization.

10040121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 87 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 10040121 is about 3168.6149971241. The cubic root of 10040121 is about 215.7312114424.

Adding to 10040121 its reverse (12104001), we get a palindrome (22144122).

The spelling of 10040121 in words is "ten million, forty thousand, one hundred twenty-one".