1021131323 has 2 divisors, whose sum is σ = 1021131324. Its totient is φ = 1021131322.

The previous prime is 1021131283. The next prime is 1021131361. The reversal of 1021131323 is 3231311201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1021131323 - 2¹² = 1021127227 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021331323) 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 as a sum of consecutive naturals, namely, 510565661 + 510565662.

It is an arithmetic number, because the mean of its divisors is an integer number (510565662).

Almost surely, 2^1021131323 is an apocalyptic number.

1021131323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021131323 is an equidigital number, since it uses as much as digits as its factorization.

1021131323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1021131323 is about 31955.1454855083. The cubic root of 1021131323 is about 1006.9947339547.

Adding to 1021131323 its reverse (3231311201), we get a palindrome (4252442524).

The spelling of 1021131323 in words is "one billion, twenty-one million, one hundred thirty-one thousand, three hundred twenty-three".