40420134321 has 16 divisors (see below), whose sum is σ = 61595440128. Its totient is φ = 23096149200.

The previous prime is 40420134311. The next prime is 40420134323. The reversal of 40420134321 is 12343102404.

40420134321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40420134321 - 2²¹ = 40418037169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40420134291 and 40420134300.

It is not an unprimeable number, because it can be changed into a prime (40420134323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 741676 + ... + 794306.

It is an arithmetic number, because the mean of its divisors is an integer number (3849715008).

Almost surely, 2^40420134321 is an apocalyptic number.

It is an amenable number.

40420134321 is a deficient number, since it is larger than the sum of its proper divisors (21175305807).

40420134321 is a wasteful number, since it uses less digits than its factorization.

40420134321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89212.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 40420134321 its reverse (12343102404), we get a palindrome (52763236725).

The spelling of 40420134321 in words is "forty billion, four hundred twenty million, one hundred thirty-four thousand, three hundred twenty-one".