31212030220132 has 12 divisors (see below), whose sum is σ = 54706265140716. Its totient is φ = 15581668751360.

The previous prime is 31212030220123. The next prime is 31212030220193. The reversal of 31212030220132 is 23102203021213.

It can be written as a sum of positive squares in 2 ways, for example, as 11041637826816 + 20170392393316 = 3322896^2 + 4491146^2 .

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, 6086586793 + ... + 6086591920.

It is an arithmetic number, because the mean of its divisors is an integer number (4558855428393).

Almost surely, 2^{31212030220132} is an apocalyptic number.

It is an amenable number.

31212030220132 is a deficient number, since it is larger than the sum of its proper divisors (23494234920584).

31212030220132 is a wasteful number, since it uses less digits than its factorization.

31212030220132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12173179358 (or 12173179356 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31212030220132 its reverse (23102203021213), we get a palindrome (54314233241345).

The spelling of 31212030220132 in words is "thirty-one trillion, two hundred twelve billion, thirty million, two hundred twenty thousand, one hundred thirty-two".