1023111011 has 16 divisors (see below), whose sum is σ = 1140142080. Its totient is φ = 911705760.

The previous prime is 1023110969. The next prime is 1023111059. The reversal of 1023111011 is 1101113201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1023111011 - 2⁶ = 1023110947 is a prime.

It is a super-2 number, since 2×1023111011² = 2093512281658884242, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1023110983 and 1023111001.

It is not an unprimeable number, because it can be changed into a prime (1023111811) 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, 174026 + ... + 179808.

It is an arithmetic number, because the mean of its divisors is an integer number (71258880).

Almost surely, 2^1023111011 is an apocalyptic number.

1023111011 is a deficient number, since it is larger than the sum of its proper divisors (117031069).

1023111011 is a wasteful number, since it uses less digits than its factorization.

1023111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6266.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 1023111011 is about 31986.1065308049. The cubic root of 1023111011 is about 1007.6450742291.

Adding to 1023111011 its reverse (1101113201), we get a palindrome (2124224212).

It can be divided in two parts, 102 and 3111011, that added together give a palindrome (3111113).

The spelling of 1023111011 in words is "one billion, twenty-three million, one hundred eleven thousand, eleven".