1020011223 has 16 divisors (see below), whose sum is σ = 1695603456. Its totient is φ = 529875840.

The previous prime is 1020011207. The next prime is 1020011297. The reversal of 1020011223 is 3221100201.

It is not a de Polignac number, because 1020011223 - 2⁴ = 1020011207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020011199 and 1020011208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020011123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2207586 + ... + 2208047.

It is an arithmetic number, because the mean of its divisors is an integer number (105975216).

Almost surely, 2^1020011223 is an apocalyptic number.

1020011223 is a deficient number, since it is larger than the sum of its proper divisors (675592233).

1020011223 is a wasteful number, since it uses less digits than its factorization.

1020011223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4415654.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1020011223 is about 31937.6145477398. The cubic root of 1020011223 is about 1006.6264014834.

Adding to 1020011223 its reverse (3221100201), we get a palindrome (4241111424).

The spelling of 1020011223 in words is "one billion, twenty million, eleven thousand, two hundred twenty-three".