1023331481 has 2 divisors, whose sum is σ = 1023331482. Its totient is φ = 1023331480.

The previous prime is 1023331453. The next prime is 1023331499. The reversal of 1023331481 is 1841333201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1007491081 + 15840400 = 31741^2 + 3980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1023331481 is a prime.

It is a super-2 number, since 2×1023331481² = 2094414640011306722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1023331481.

It is not a weakly prime, because it can be changed into another prime (1023331781) 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, 511665740 + 511665741.

It is an arithmetic number, because the mean of its divisors is an integer number (511665741).

Almost surely, 2^1023331481 is an apocalyptic number.

It is an amenable number.

1023331481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1023331481 is an equidigital number, since it uses as much as digits as its factorization.

1023331481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1023331481 is about 31989.5526852127. The cubic root of 1023331481 is about 1007.7174481134.

Adding to 1023331481 its reverse (1841333201), we get a palindrome (2864664682).

It can be divided in two parts, 10233 and 31481, that added together give a palindrome (41714).

The spelling of 1023331481 in words is "one billion, twenty-three million, three hundred thirty-one thousand, four hundred eighty-one".