31043361522 has 16 divisors (see below), whose sum is σ = 62096182560. Its totient is φ = 10346210592.

The previous prime is 31043361521. The next prime is 31043361541. The reversal of 31043361522 is 22516334013.

It is a self number, because there is not a number n which added to its sum of digits gives 31043361522.

It is not an unprimeable number, because it can be changed into a prime (31043361521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 351123 + ... + 430550.

It is an arithmetic number, because the mean of its divisors is an integer number (3881011410).

Almost surely, 2^31043361522 is an apocalyptic number.

31043361522 is an abundant number, since it is smaller than the sum of its proper divisors (31052821038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31043361522 is a wasteful number, since it uses less digits than its factorization.

31043361522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788297.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 31043361522 its reverse (22516334013), we get a palindrome (53559695535).

The spelling of 31043361522 in words is "thirty-one billion, forty-three million, three hundred sixty-one thousand, five hundred twenty-two".