31354342519 has 2 divisors, whose sum is σ = 31354342520. Its totient is φ = 31354342518.

The previous prime is 31354342477. The next prime is 31354342543. The reversal of 31354342519 is 91524345313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31354342519 - 2¹⁹ = 31353818231 is a prime.

It is a super-2 number, since 2×31354342519² (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 (31357342519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15677171259 + 15677171260.

It is an arithmetic number, because the mean of its divisors is an integer number (15677171260).

Almost surely, 2^31354342519 is an apocalyptic number.

31354342519 is a deficient number, since it is larger than the sum of its proper divisors (1).

31354342519 is an equidigital number, since it uses as much as digits as its factorization.

31354342519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 40.

The spelling of 31354342519 in words is "thirty-one billion, three hundred fifty-four million, three hundred forty-two thousand, five hundred nineteen".