40403421311 has 16 divisors (see below), whose sum is σ = 44176973568. Its totient is φ = 36646732800.

The previous prime is 40403421281. The next prime is 40403421323. The reversal of 40403421311 is 11312430404.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40403421311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40403421211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11685695 + ... + 11689151.

It is an arithmetic number, because the mean of its divisors is an integer number (2761060848).

Almost surely, 2^40403421311 is an apocalyptic number.

40403421311 is a deficient number, since it is larger than the sum of its proper divisors (3773552257).

40403421311 is a wasteful number, since it uses less digits than its factorization.

40403421311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5582.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 40403421311 its reverse (11312430404), we get a palindrome (51715851715).

The spelling of 40403421311 in words is "forty billion, four hundred three million, four hundred twenty-one thousand, three hundred eleven".