11131004023 has 16 divisors (see below), whose sum is σ = 12021337440. Its totient is φ = 10271923200.

The previous prime is 11131004009. The next prime is 11131004047. The reversal of 11131004023 is 32040013111.

It is a cyclic number.

It is not a de Polignac number, because 11131004023 - 2⁵ = 11131003991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11131003988 and 11131004006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131004923) 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, 504111 + ... + 525727.

It is an arithmetic number, because the mean of its divisors is an integer number (751333590).

Almost surely, 2^11131004023 is an apocalyptic number.

11131004023 is a deficient number, since it is larger than the sum of its proper divisors (890333417).

11131004023 is a wasteful number, since it uses less digits than its factorization.

11131004023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22338.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11131004023 its reverse (32040013111), we get a palindrome (43171017134).

The spelling of 11131004023 in words is "eleven billion, one hundred thirty-one million, four thousand, twenty-three".