40130391443 has 2 divisors, whose sum is σ = 40130391444. Its totient is φ = 40130391442.

The previous prime is 40130391419. The next prime is 40130391463. The reversal of 40130391443 is 34419303104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40130391443 - 2²⁶ = 40063282579 is a prime.

It is a super-2 number, since 2×40130391443² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40130391463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20065195721 + 20065195722.

It is an arithmetic number, because the mean of its divisors is an integer number (20065195722).

Almost surely, 2^40130391443 is an apocalyptic number.

40130391443 is a deficient number, since it is larger than the sum of its proper divisors (1).

40130391443 is an equidigital number, since it uses as much as digits as its factorization.

40130391443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 32.

Adding to 40130391443 its reverse (34419303104), we get a palindrome (74549694547).

The spelling of 40130391443 in words is "forty billion, one hundred thirty million, three hundred ninety-one thousand, four hundred forty-three".