40100240121 has 4 divisors (see below), whose sum is σ = 53466986832. Its totient is φ = 26733493412.

The previous prime is 40100240051. The next prime is 40100240137. The reversal of 40100240121 is 12104200104.

40100240121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40100240121 - 2³⁰ = 39026498297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40100240121.

It is not an unprimeable number, because it can be changed into a prime (40100240321) 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, 6683373351 + ... + 6683373356.

It is an arithmetic number, because the mean of its divisors is an integer number (13366746708).

Almost surely, 2^40100240121 is an apocalyptic number.

It is an amenable number.

40100240121 is a deficient number, since it is larger than the sum of its proper divisors (13366746711).

40100240121 is a wasteful number, since it uses less digits than its factorization.

40100240121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13366746710.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 40100240121 its reverse (12104200104), we get a palindrome (52204440225).

The spelling of 40100240121 in words is "forty billion, one hundred million, two hundred forty thousand, one hundred twenty-one".