1011038489 has 4 divisors (see below), whose sum is σ = 1034551056. Its totient is φ = 987525924.

The previous prime is 1011038477. The next prime is 1011038503. The reversal of 1011038489 is 9848301101.

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 1011038489 - 2⁴ = 1011038473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011038419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11756219 + ... + 11756304.

It is an arithmetic number, because the mean of its divisors is an integer number (258637764).

Almost surely, 2^1011038489 is an apocalyptic number.

It is an amenable number.

1011038489 is a deficient number, since it is larger than the sum of its proper divisors (23512567).

1011038489 is an equidigital number, since it uses as much as digits as its factorization.

1011038489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23512566.

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 1011038489 is about 31796.8314301913. The cubic root of 1011038489 is about 1003.6660400599. Note that the first 3 decimals are identical.

The spelling of 1011038489 in words is "one billion, eleven million, thirty-eight thousand, four hundred eighty-nine".