31133033231330 has 16 divisors (see below), whose sum is σ = 56040000255864. Its totient is φ = 12453093194880.

The previous prime is 31133033231317. The next prime is 31133033231359. The reversal of 31133033231330 is 3313233033113.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19033578837001 + 12099454394329 = 4362749^2 + 3478427^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31133033231293 and 31133033231302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13919651 + ... + 16000710.

Almost surely, 2^{31133033231330} is an apocalyptic number.

31133033231330 is a deficient number, since it is larger than the sum of its proper divisors (24906967024534).

31133033231330 is a wasteful number, since it uses less digits than its factorization.

31133033231330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30024421.

The product of its (nonzero) digits is 13122, while the sum is 29.

Adding to 31133033231330 its reverse (3313233033113), we get a palindrome (34446266264443).

The spelling of 31133033231330 in words is "thirty-one trillion, one hundred thirty-three billion, thirty-three million, two hundred thirty-one thousand, three hundred thirty".