31233402131332 has 12 divisors (see below), whose sum is σ = 54658553902876. Its totient is φ = 15616672444800.

The previous prime is 31233402131329. The next prime is 31233402131431. The reversal of 31233402131332 is 23313120433213.

It can be written as a sum of positive squares in 2 ways, for example, as 3627562107456 + 27605840023876 = 1904616^2 + 5254126^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31233402131294 and 31233402131303.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4598313 + ... + 9143920.

Almost surely, 2^{31233402131332} is an apocalyptic number.

It is an amenable number.

31233402131332 is a deficient number, since it is larger than the sum of its proper divisors (23425151771544).

31233402131332 is a wasteful number, since it uses less digits than its factorization.

31233402131332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14310438 (or 14310436 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 31233402131332 its reverse (23313120433213), we get a palindrome (54546522564545).

The spelling of 31233402131332 in words is "thirty-one trillion, two hundred thirty-three billion, four hundred two million, one hundred thirty-one thousand, three hundred thirty-two".