1231020330322 has 16 divisors (see below), whose sum is σ = 1878438978432. Its totient is φ = 604916634960.

The previous prime is 1231020330317. The next prime is 1231020330329. The reversal of 1231020330322 is 2230330201321.

It is a super-2 number, since 2×1231020330322² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1231020330293 and 1231020330302.

It is not an unprimeable number, because it can be changed into a prime (1231020330329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10599693 + ... + 10715200.

It is an arithmetic number, because the mean of its divisors is an integer number (117402436152).

Almost surely, 2^{1231020330322} is an apocalyptic number.

1231020330322 is a deficient number, since it is larger than the sum of its proper divisors (647418648110).

1231020330322 is a wasteful number, since it uses less digits than its factorization.

1231020330322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21315393.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 1231020330322 its reverse (2230330201321), we get a palindrome (3461350531643).

The spelling of 1231020330322 in words is "one trillion, two hundred thirty-one billion, twenty million, three hundred thirty thousand, three hundred twenty-two".