1011420513 has 20 divisors (see below), whose sum is σ = 1547743428. Its totient is φ = 657832320.

The previous prime is 1011420511. The next prime is 1011420523. The reversal of 1011420513 is 3150241101.

1011420513 is a `hidden beast` number, since 10 + 1 + 142 + 0 + 513 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 175748049 + 835672464 = 13257^2 + 28908^2 .

It is not a de Polignac number, because 1011420513 - 2¹ = 1011420511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011420511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 148956 + ... + 155597.

Almost surely, 2^1011420513 is an apocalyptic number.

It is an amenable number.

1011420513 is a deficient number, since it is larger than the sum of its proper divisors (536322915).

1011420513 is an equidigital number, since it uses as much as digits as its factorization.

1011420513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304606 (or 304597 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1011420513 is about 31802.8381280665. The cubic root of 1011420513 is about 1003.7924369073.

Adding to 1011420513 its reverse (3150241101), we get a palindrome (4161661614).

The spelling of 1011420513 in words is "one billion, eleven million, four hundred twenty thousand, five hundred thirteen".