31212103132322 has 48 divisors (see below), whose sum is σ = 55391708437920. Its totient is φ = 13148305011072.

The previous prime is 31212103132321. The next prime is 31212103132351. The reversal of 31212103132322 is 22323130121213.

It is a super-2 number, since 2×31212103132322² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31212103132291 and 31212103132300.

It is not an unprimeable number, because it can be changed into a prime (31212103132321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48171818 + ... + 48815450.

It is an arithmetic number, because the mean of its divisors is an integer number (1153993925790).

Almost surely, 2^{31212103132322} is an apocalyptic number.

31212103132322 is a deficient number, since it is larger than the sum of its proper divisors (24179605305598).

31212103132322 is a wasteful number, since it uses less digits than its factorization.

31212103132322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652095 (or 652088 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 31212103132322 its reverse (22323130121213), we get a palindrome (53535233253535).

The spelling of 31212103132322 in words is "thirty-one trillion, two hundred twelve billion, one hundred three million, one hundred thirty-two thousand, three hundred twenty-two".