1023011173 has 4 divisors (see below), whose sum is σ = 1025959680. Its totient is φ = 1020062668.

The previous prime is 1023011161. The next prime is 1023011177. The reversal of 1023011173 is 3711103201.

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 1023011173 - 2¹⁷ = 1022880101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1023011173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023011177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1473733 + ... + 1474426.

It is an arithmetic number, because the mean of its divisors is an integer number (256489920).

Almost surely, 2^1023011173 is an apocalyptic number.

It is an amenable number.

1023011173 is a deficient number, since it is larger than the sum of its proper divisors (2948507).

1023011173 is an equidigital number, since it uses as much as digits as its factorization.

1023011173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2948506.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 1023011173 is about 31984.5458463928. The cubic root of 1023011173 is about 1007.6122968992.

Adding to 1023011173 its reverse (3711103201), we get a palindrome (4734114374).

The spelling of 1023011173 in words is "one billion, twenty-three million, eleven thousand, one hundred seventy-three".