11230220031 has 4 divisors (see below), whose sum is σ = 14973626712. Its totient is φ = 7486813352.

The previous prime is 11230220017. The next prime is 11230220039. The reversal of 11230220031 is 13002203211.

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 11230220031 - 2⁵ = 11230219999 is a prime.

It is a super-2 number, since 2×11230220031² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11230220039) 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, 1871703336 + ... + 1871703341.

It is an arithmetic number, because the mean of its divisors is an integer number (3743406678).

Almost surely, 2^11230220031 is an apocalyptic number.

11230220031 is a deficient number, since it is larger than the sum of its proper divisors (3743406681).

11230220031 is an equidigital number, since it uses as much as digits as its factorization.

11230220031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3743406680.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 11230220031 its reverse (13002203211), we get a palindrome (24232423242).

The spelling of 11230220031 in words is "eleven billion, two hundred thirty million, two hundred twenty thousand, thirty-one".