1323020131 has 2 divisors, whose sum is σ = 1323020132. Its totient is φ = 1323020130.

The previous prime is 1323020119. The next prime is 1323020147. The reversal of 1323020131 is 1310203231.

It is an a-pointer prime, because the next prime (1323020147) can be obtained adding 1323020131 to its sum of digits (16).

It is a weak prime.

It is an emirp because it is prime and its reverse (1310203231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1323020131 - 2¹³ = 1323011939 is a prime.

It is a super-2 number, since 2×1323020131² = 3500764534062514322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1323027131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661510065 + 661510066.

It is an arithmetic number, because the mean of its divisors is an integer number (661510066).

Almost surely, 2^1323020131 is an apocalyptic number.

1323020131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323020131 is an equidigital number, since it uses as much as digits as its factorization.

1323020131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1323020131 is about 36373.3436873763. The cubic root of 1323020131 is about 1097.7972810424.

Adding to 1323020131 its reverse (1310203231), we get a palindrome (2633223362).

The spelling of 1323020131 in words is "one billion, three hundred twenty-three million, twenty thousand, one hundred thirty-one".