31322630202642 has 12 divisors (see below), whose sum is σ = 67865698772430. Its totient is φ = 10440876734208.

The previous prime is 31322630202601. The next prime is 31322630202659. The reversal of 31322630202642 is 24620203622313.

31322630202642 is a `hidden beast` number, since 3 + 1 + 3 + 2 + 2 + 6 + 3 + 0 + 2 + 0 + 2 + 642 = 666.

It can be written as a sum of positive squares in only one way, i.e., 25864944606081 + 5457685596561 = 5085759^2 + 2336169^2 .

It is a super-2 number, since 2×31322630202642² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31322630202597 and 31322630202606.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 870073061167 + ... + 870073061202.

Almost surely, 2^{31322630202642} is an apocalyptic number.

31322630202642 is an abundant number, since it is smaller than the sum of its proper divisors (36543068569788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31322630202642 is a wasteful number, since it uses less digits than its factorization.

31322630202642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740146122377 (or 1740146122374 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 36.

Adding to 31322630202642 its reverse (24620203622313), we get a palindrome (55942833824955).

The spelling of 31322630202642 in words is "thirty-one trillion, three hundred twenty-two billion, six hundred thirty million, two hundred two thousand, six hundred forty-two".