31133130233332 has 6 divisors (see below), whose sum is σ = 54482977908338. Its totient is φ = 15566565116664.

The previous prime is 31133130233299. The next prime is 31133130233339. The reversal of 31133130233332 is 23333203133113.

It can be written as a sum of positive squares in only one way, i.e., 16459281456016 + 14673848777316 = 4057004^2 + 3830646^2 .

It is a super-2 number, since 2×31133130233332² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31133130233294 and 31133130233303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31133130233339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3891641279163 + ... + 3891641279170.

Almost surely, 2^{31133130233332} is an apocalyptic number.

It is an amenable number.

31133130233332 is a deficient number, since it is larger than the sum of its proper divisors (23349847675006).

31133130233332 is a wasteful number, since it uses less digits than its factorization.

31133130233332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7783282558337 (or 7783282558335 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 31.

Adding to 31133130233332 its reverse (23333203133113), we get a palindrome (54466333366445).

The spelling of 31133130233332 in words is "thirty-one trillion, one hundred thirty-three billion, one hundred thirty million, two hundred thirty-three thousand, three hundred thirty-two".