11020030231 has 4 divisors (see below), whose sum is σ = 12594320272. Its totient is φ = 9445740192.

The previous prime is 11020030201. The next prime is 11020030237. The reversal of 11020030231 is 13203002011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13203002011 = 31181 ⋅423431.

It is not a de Polignac number, because 11020030231 - 2⁵ = 11020030199 is a prime.

It is a super-2 number, since 2×11020030231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020030237) 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, 787145010 + ... + 787145023.

It is an arithmetic number, because the mean of its divisors is an integer number (3148580068).

Almost surely, 2^11020030231 is an apocalyptic number.

11020030231 is a deficient number, since it is larger than the sum of its proper divisors (1574290041).

11020030231 is an equidigital number, since it uses as much as digits as its factorization.

11020030231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574290040.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 11020030231 its reverse (13203002011), we get a palindrome (24223032242).

The spelling of 11020030231 in words is "eleven billion, twenty million, thirty thousand, two hundred thirty-one".