40130391373 has 2 divisors, whose sum is σ = 40130391374. Its totient is φ = 40130391372.

The previous prime is 40130391361. The next prime is 40130391419. The reversal of 40130391373 is 37319303104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29543421924 + 10586969449 = 171882^2 + 102893^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40130391373 is a prime.

It is a super-2 number, since 2×40130391373² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40130391673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20065195686 + 20065195687.

It is an arithmetic number, because the mean of its divisors is an integer number (20065195687).

Almost surely, 2^40130391373 is an apocalyptic number.

It is an amenable number.

40130391373 is a deficient number, since it is larger than the sum of its proper divisors (1).

40130391373 is an equidigital number, since it uses as much as digits as its factorization.

40130391373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 34.

Adding to 40130391373 its reverse (37319303104), we get a palindrome (77449694477).

The spelling of 40130391373 in words is "forty billion, one hundred thirty million, three hundred ninety-one thousand, three hundred seventy-three".