11431024031 has 4 divisors (see below), whose sum is σ = 13064027472. Its totient is φ = 9798020592.

The previous prime is 11431024027. The next prime is 11431024061. The reversal of 11431024031 is 13042013411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11431024031 - 2² = 11431024027 is a prime.

It is a super-2 number, since 2×11431024031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11431023994 and 11431024012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11431024061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 816501710 + ... + 816501723.

It is an arithmetic number, because the mean of its divisors is an integer number (3266006868).

Almost surely, 2^11431024031 is an apocalyptic number.

11431024031 is a deficient number, since it is larger than the sum of its proper divisors (1633003441).

11431024031 is an equidigital number, since it uses as much as digits as its factorization.

11431024031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1633003440.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11431024031 its reverse (13042013411), we get a palindrome (24473037442).

The spelling of 11431024031 in words is "eleven billion, four hundred thirty-one million, twenty-four thousand, thirty-one".