40124405321 has 32 divisors (see below), whose sum is σ = 53920532736. Its totient is φ = 28835424000.

The previous prime is 40124405281. The next prime is 40124405383. The reversal of 40124405321 is 12350442104.

It is a cyclic number.

It is not a de Polignac number, because 40124405321 - 2³⁰ = 39050663497 is a prime.

It is a super-2 number, since 2×40124405321² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40124405221) 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 31 ways as a sum of consecutive naturals, for example, 1165211 + ... + 1199151.

It is an arithmetic number, because the mean of its divisors is an integer number (1685016648).

Almost surely, 2^40124405321 is an apocalyptic number.

It is an amenable number.

40124405321 is a deficient number, since it is larger than the sum of its proper divisors (13796127415).

40124405321 is a wasteful number, since it uses less digits than its factorization.

40124405321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35153.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 40124405321 its reverse (12350442104), we get a palindrome (52474847425).

The spelling of 40124405321 in words is "forty billion, one hundred twenty-four million, four hundred five thousand, three hundred twenty-one".