1323131022 has 24 divisors (see below), whose sum is σ = 2896342176. Its totient is φ = 436496256.

The previous prime is 1323130999. The next prime is 1323131039. The reversal of 1323131022 is 2201313231.

1323131022 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1323130986 and 1323131004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 377158 + ... + 380649.

It is an arithmetic number, because the mean of its divisors is an integer number (120680924).

Almost surely, 2^1323131022 is an apocalyptic number.

1323131022 is an abundant number, since it is smaller than the sum of its proper divisors (1573211154).

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

1323131022 is a wasteful number, since it uses less digits than its factorization.

1323131022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757912 (or 757909 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1323131022 is about 36374.8679997605. The cubic root of 1323131022 is about 1097.8279513838.

Adding to 1323131022 its reverse (2201313231), we get a palindrome (3524444253).

It can be divided in two parts, 13231 and 31022, that added together give a triangular number (44253 = T₂₉₇).

The spelling of 1323131022 in words is "one billion, three hundred twenty-three million, one hundred thirty-one thousand, twenty-two".