31332330203212 has 12 divisors (see below), whose sum is σ = 54831617139600. Its totient is φ = 15666153877616.

The previous prime is 31332330203189. The next prime is 31332330203219. The reversal of 31332330203212 is 21230203323313.

It is a super-2 number, since 2×31332330203212² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31332330203219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8914914 + ... + 11922262.

It is an arithmetic number, because the mean of its divisors is an integer number (4569301428300).

Almost surely, 2^{31332330203212} is an apocalyptic number.

It is an amenable number.

31332330203212 is a deficient number, since it is larger than the sum of its proper divisors (23499286936388).

31332330203212 is a wasteful number, since it uses less digits than its factorization.

31332330203212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5612000 (or 5611998 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 31332330203212 its reverse (21230203323313), we get a palindrome (52562533526525).

The spelling of 31332330203212 in words is "thirty-one trillion, three hundred thirty-two billion, three hundred thirty million, two hundred three thousand, two hundred twelve".