40013301021 has 4 divisors (see below), whose sum is σ = 53351068032. Its totient is φ = 26675534012.

The previous prime is 40013300983. The next prime is 40013301059. The reversal of 40013301021 is 12010331004.

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 an interprime number because it is at equal distance from previous prime (40013300983) and next prime (40013301059).

It is a cyclic number.

It is not a de Polignac number, because 40013301021 - 2¹³ = 40013292829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40013301061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6668883501 + ... + 6668883506.

It is an arithmetic number, because the mean of its divisors is an integer number (13337767008).

Almost surely, 2^40013301021 is an apocalyptic number.

It is an amenable number.

40013301021 is a deficient number, since it is larger than the sum of its proper divisors (13337767011).

40013301021 is a wasteful number, since it uses less digits than its factorization.

40013301021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13337767010.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 40013301021 its reverse (12010331004), we get a palindrome (52023632025).

The spelling of 40013301021 in words is "forty billion, thirteen million, three hundred one thousand, twenty-one".