1020513331 has 2 divisors, whose sum is σ = 1020513332. Its totient is φ = 1020513330.

The previous prime is 1020513293. The next prime is 1020513337. The reversal of 1020513331 is 1333150201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1020513331 - 2⁷ = 1020513203 is a prime.

It is a super-2 number, since 2×1020513331² = 2082894917497431122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1020513299 and 1020513308.

It is not a weakly prime, because it can be changed into another prime (1020513337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510256665 + 510256666.

It is an arithmetic number, because the mean of its divisors is an integer number (510256666).

Almost surely, 2^1020513331 is an apocalyptic number.

1020513331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020513331 is an equidigital number, since it uses as much as digits as its factorization.

1020513331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 1020513331 is about 31945.4743430114. The cubic root of 1020513331 is about 1006.7915474628.

Adding to 1020513331 its reverse (1333150201), we get a palindrome (2353663532).

The spelling of 1020513331 in words is "one billion, twenty million, five hundred thirteen thousand, three hundred thirty-one".