31424352532 has 24 divisors (see below), whose sum is σ = 55594269864. Its totient is φ = 15541105152.

The previous prime is 31424352523. The next prime is 31424352539. The reversal of 31424352532 is 23525342413.

It can be written as a sum of positive squares in 4 ways, for example, as 347598736 + 31076753796 = 18644^2 + 176286^2 .

It is a super-3 number, since 3×31424352532³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31424352539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48288 + ... + 255304.

It is an arithmetic number, because the mean of its divisors is an integer number (2316427911).

Almost surely, 2^31424352532 is an apocalyptic number.

It is an amenable number.

31424352532 is a deficient number, since it is larger than the sum of its proper divisors (24169917332).

31424352532 is a wasteful number, since it uses less digits than its factorization.

31424352532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207435 (or 207433 counting only the distinct ones).

The product of its digits is 86400, while the sum is 34.

Adding to 31424352532 its reverse (23525342413), we get a palindrome (54949694945).

The spelling of 31424352532 in words is "thirty-one billion, four hundred twenty-four million, three hundred fifty-two thousand, five hundred thirty-two".