31542143299 has 2 divisors, whose sum is σ = 31542143300. Its totient is φ = 31542143298.

The previous prime is 31542143279. The next prime is 31542143377. The reversal of 31542143299 is 99234124513.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31542143299 - 2²³ = 31533754691 is a prime.

It is not a weakly prime, because it can be changed into another prime (31542143279) 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, 15771071649 + 15771071650.

It is an arithmetic number, because the mean of its divisors is an integer number (15771071650).

Almost surely, 2^31542143299 is an apocalyptic number.

31542143299 is a deficient number, since it is larger than the sum of its proper divisors (1).

31542143299 is an equidigital number, since it uses as much as digits as its factorization.

31542143299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 43.

It can be divided in two parts, 3154214 and 3299, that added together give a palindrome (3157513).

The spelling of 31542143299 in words is "thirty-one billion, five hundred forty-two million, one hundred forty-three thousand, two hundred ninety-nine".