11142131023 has 4 divisors (see below), whose sum is σ = 11143562040. Its totient is φ = 11140700008.

The previous prime is 11142130991. The next prime is 11142131071. The reversal of 11142131023 is 32013124111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32013124111 = 19 ⋅1684901269.

It is a cyclic number.

It is not a de Polignac number, because 11142131023 - 2⁵ = 11142130991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11142131083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 703765 + ... + 719422.

It is an arithmetic number, because the mean of its divisors is an integer number (2785890510).

Almost surely, 2^11142131023 is an apocalyptic number.

11142131023 is a deficient number, since it is larger than the sum of its proper divisors (1431017).

11142131023 is an equidigital number, since it uses as much as digits as its factorization.

11142131023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431016.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 11142131023 its reverse (32013124111), we get a palindrome (43155255134).

The spelling of 11142131023 in words is "eleven billion, one hundred forty-two million, one hundred thirty-one thousand, twenty-three".