1011323013 has 64 divisors (see below), whose sum is σ = 1569300480. Its totient is φ = 575078400.

The previous prime is 1011323009. The next prime is 1011323023. The reversal of 1011323013 is 3103231101.

It is not a de Polignac number, because 1011323013 - 2² = 1011323009 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1011322983 and 1011323001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011323023) 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 63 ways as a sum of consecutive naturals, for example, 3934981 + ... + 3935237.

It is an arithmetic number, because the mean of its divisors is an integer number (24520320).

Almost surely, 2^1011323013 is an apocalyptic number.

It is an amenable number.

1011323013 is a deficient number, since it is larger than the sum of its proper divisors (557977467).

1011323013 is a wasteful number, since it uses less digits than its factorization.

1011323013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1011323013 is about 31801.3052090634. The cubic root of 1011323013 is about 1003.7601809840.

Adding to 1011323013 its reverse (3103231101), we get a palindrome (4114554114).

The spelling of 1011323013 in words is "one billion, eleven million, three hundred twenty-three thousand, thirteen".