31142242130535 has 64 divisors (see below), whose sum is σ = 56059870464000. Its totient is φ = 16401344154624.

The previous prime is 31142242130501. The next prime is 31142242130557. The reversal of 31142242130535 is 53503124224113.

31142242130535 is a `hidden beast` number, since 3 + 11 + 42 + 2 + 42 + 1 + 30 + 535 = 666.

It is not a de Polignac number, because 31142242130535 - 2¹² = 31142242126439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31142242130535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1736166 + ... + 8080764.

It is an arithmetic number, because the mean of its divisors is an integer number (875935476000).

Almost surely, 2^{31142242130535} is an apocalyptic number.

31142242130535 is a deficient number, since it is larger than the sum of its proper divisors (24917628333465).

31142242130535 is a wasteful number, since it uses less digits than its factorization.

31142242130535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6345069 (or 6345063 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 31142242130535 its reverse (53503124224113), we get a palindrome (84645366354648).

The spelling of 31142242130535 in words is "thirty-one trillion, one hundred forty-two billion, two hundred forty-two million, one hundred thirty thousand, five hundred thirty-five".