1028011823 has 4 divisors (see below), whose sum is σ = 1034318808. Its totient is φ = 1021704840.

The previous prime is 1028011799. The next prime is 1028011837. The reversal of 1028011823 is 3281108201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1028011823 - 2⁶ = 1028011759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1028011792 and 1028011801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1028011123) 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, 3153248 + ... + 3153573.

It is an arithmetic number, because the mean of its divisors is an integer number (258579702).

Almost surely, 2^1028011823 is an apocalyptic number.

1028011823 is a deficient number, since it is larger than the sum of its proper divisors (6306985).

1028011823 is an equidigital number, since it uses as much as digits as its factorization.

1028011823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6306984.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 1028011823 is about 32062.6234578520. The cubic root of 1028011823 is about 1009.2514215925.

The spelling of 1028011823 in words is "one billion, twenty-eight million, eleven thousand, eight hundred twenty-three".