40101121 has 4 divisors (see below), whose sum is σ = 41844672. Its totient is φ = 38357572.

The previous prime is 40101119. The next prime is 40101151. The reversal of 40101121 is 12110104.

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 40101121 - 2¹ = 40101119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40101098 and 40101107.

It is not an unprimeable number, because it can be changed into a prime (40101151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 871741 + ... + 871786.

It is an arithmetic number, because the mean of its divisors is an integer number (10461168).

Almost surely, 2^40101121 is an apocalyptic number.

It is an amenable number.

40101121 is a deficient number, since it is larger than the sum of its proper divisors (1743551).

40101121 is a wasteful number, since it uses less digits than its factorization.

40101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743550.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 40101121 is about 6332.5445912366. The cubic root of 40101121 is about 342.2831376208.

Adding to 40101121 its reverse (12110104), we get a palindrome (52211225).

The spelling of 40101121 in words is "forty million, one hundred one thousand, one hundred twenty-one".