11021130031 has 4 divisors (see below), whose sum is σ = 11021538672. Its totient is φ = 11020721392.

The previous prime is 11021129989. The next prime is 11021130053. The reversal of 11021130031 is 13003112011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13003112011 = 59 ⋅220391729.

It is a cyclic number.

It is not a de Polignac number, because 11021130031 - 2¹⁷ = 11020998959 is a prime.

It is a super-2 number, since 2×11021130031² (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 = 11021129993 and 11021130020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021134031) 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, 160771 + ... + 218836.

It is an arithmetic number, because the mean of its divisors is an integer number (2755384668).

Almost surely, 2^11021130031 is an apocalyptic number.

11021130031 is a deficient number, since it is larger than the sum of its proper divisors (408641).

11021130031 is an equidigital number, since it uses as much as digits as its factorization.

11021130031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408640.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11021130031 its reverse (13003112011), we get a palindrome (24024242042).

The spelling of 11021130031 in words is "eleven billion, twenty-one million, one hundred thirty thousand, thirty-one".