1011635213 has 16 divisors (see below), whose sum is σ = 1039536960. Its totient is φ = 984254976.

The previous prime is 1011635171. The next prime is 1011635227. The reversal of 1011635213 is 3125361101.

It is a cyclic number.

It is not a de Polignac number, because 1011635213 - 2⁸ = 1011634957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011635293) 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 15 ways as a sum of consecutive naturals, for example, 1723106 + ... + 1723692.

It is an arithmetic number, because the mean of its divisors is an integer number (64971060).

Almost surely, 2^1011635213 is an apocalyptic number.

It is an amenable number.

1011635213 is a deficient number, since it is larger than the sum of its proper divisors (27901747).

1011635213 is a wasteful number, since it uses less digits than its factorization.

1011635213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 1011635213 is about 31806.2134338560. The cubic root of 1011635213 is about 1003.8634587971.

Adding to 1011635213 its reverse (3125361101), we get a palindrome (4136996314).

The spelling of 1011635213 in words is "one billion, eleven million, six hundred thirty-five thousand, two hundred thirteen".