40321111451 has 2 divisors, whose sum is σ = 40321111452. Its totient is φ = 40321111450.

The previous prime is 40321111399. The next prime is 40321111477. The reversal of 40321111451 is 15411112304.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40321111451 - 2²⁶ = 40254002587 is a prime.

It is not a weakly prime, because it can be changed into another prime (40321101451) 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 as a sum of consecutive naturals, namely, 20160555725 + 20160555726.

It is an arithmetic number, because the mean of its divisors is an integer number (20160555726).

Almost surely, 2^40321111451 is an apocalyptic number.

40321111451 is a deficient number, since it is larger than the sum of its proper divisors (1).

40321111451 is an equidigital number, since it uses as much as digits as its factorization.

40321111451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 40321111451 its reverse (15411112304), we get a palindrome (55732223755).

The spelling of 40321111451 in words is "forty billion, three hundred twenty-one million, one hundred eleven thousand, four hundred fifty-one".