31424313451 has 2 divisors, whose sum is σ = 31424313452. Its totient is φ = 31424313450.

The previous prime is 31424313443. The next prime is 31424313469. The reversal of 31424313451 is 15431342413.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31424313451 - 2³ = 31424313443 is a prime.

It is not a weakly prime, because it can be changed into another prime (31424313251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15712156725 + 15712156726.

It is an arithmetic number, because the mean of its divisors is an integer number (15712156726).

Almost surely, 2^31424313451 is an apocalyptic number.

31424313451 is a deficient number, since it is larger than the sum of its proper divisors (1).

31424313451 is an equidigital number, since it uses as much as digits as its factorization.

31424313451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17280, while the sum is 31.

Adding to 31424313451 its reverse (15431342413), we get a palindrome (46855655864).

The spelling of 31424313451 in words is "thirty-one billion, four hundred twenty-four million, three hundred thirteen thousand, four hundred fifty-one".