31113223331332 has 6 divisors (see below), whose sum is σ = 54448140829838. Its totient is φ = 15556611665664.

The previous prime is 31113223331329. The next prime is 31113223331357. The reversal of 31113223331332 is 23313332231113.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 30593996441856 + 519226889476 = 5531184^2 + 720574^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31113223331294 and 31113223331303.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3889152916413 + ... + 3889152916420.

Almost surely, 2^{31113223331332} is an apocalyptic number.

It is an amenable number.

31113223331332 is a deficient number, since it is larger than the sum of its proper divisors (23334917498506).

31113223331332 is a wasteful number, since it uses less digits than its factorization.

31113223331332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7778305832837 (or 7778305832835 counting only the distinct ones).

The product of its digits is 17496, while the sum is 31.

Adding to 31113223331332 its reverse (23313332231113), we get a palindrome (54426555562445).

The spelling of 31113223331332 in words is "thirty-one trillion, one hundred thirteen billion, two hundred twenty-three million, three hundred thirty-one thousand, three hundred thirty-two".