1011253513 has 2 divisors, whose sum is σ = 1011253514. Its totient is φ = 1011253512.

The previous prime is 1011253501. The next prime is 1011253553. The reversal of 1011253513 is 3153521101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1011049209 + 204304 = 31797^2 + 452^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1011253513 is a prime.

It is not a weakly prime, because it can be changed into another prime (1011253553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505626756 + 505626757.

It is an arithmetic number, because the mean of its divisors is an integer number (505626757).

Almost surely, 2^1011253513 is an apocalyptic number.

It is an amenable number.

1011253513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011253513 is an equidigital number, since it uses as much as digits as its factorization.

1011253513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 1011253513 is about 31800.2124678437. The cubic root of 1011253513 is about 1003.7371870345.

Adding to 1011253513 its reverse (3153521101), we get a palindrome (4164774614).

The spelling of 1011253513 in words is "one billion, eleven million, two hundred fifty-three thousand, five hundred thirteen".