11311011023 has 32 divisors (see below), whose sum is σ = 12640223232. Its totient is φ = 10055894400.

The previous prime is 11311010999. The next prime is 11311011029. The reversal of 11311011023 is 32011011311.

It is a happy number.

It is not a de Polignac number, because 11311011023 - 2⁶ = 11311010959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11311010989 and 11311011007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311011029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12019733 + ... + 12020673.

It is an arithmetic number, because the mean of its divisors is an integer number (395006976).

Almost surely, 2^11311011023 is an apocalyptic number.

11311011023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11311011023 is a deficient number, since it is larger than the sum of its proper divisors (1329212209).

11311011023 is a wasteful number, since it uses less digits than its factorization.

11311011023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 11311011023 its reverse (32011011311), we get a palindrome (43322022334).

The spelling of 11311011023 in words is "eleven billion, three hundred eleven million, eleven thousand, twenty-three".