1011823801 has 4 divisors (see below), whose sum is σ = 1015119952. Its totient is φ = 1008527652.

The previous prime is 1011823763. The next prime is 1011823811. The reversal of 1011823801 is 1083281101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1011823801 - 2²⁹ = 474952889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011823811) 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 in 3 ways as a sum of consecutive naturals, for example, 1647615 + ... + 1648228.

It is an arithmetic number, because the mean of its divisors is an integer number (253779988).

Almost surely, 2^1011823801 is an apocalyptic number.

It is an amenable number.

1011823801 is a deficient number, since it is larger than the sum of its proper divisors (3296151).

1011823801 is an equidigital number, since it uses as much as digits as its factorization.

1011823801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3296150.

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 1011823801 is about 31809.1779365642. The cubic root of 1011823801 is about 1003.9258346537.

The spelling of 1011823801 in words is "one billion, eleven million, eight hundred twenty-three thousand, eight hundred one".