11020223031 has 4 divisors (see below), whose sum is σ = 14693630712. Its totient is φ = 7346815352.

The previous prime is 11020223029. The next prime is 11020223033. The reversal of 11020223031 is 13032202011.

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

It is an interprime number because it is at equal distance from previous prime (11020223029) and next prime (11020223033).

It is a cyclic number.

It is not a de Polignac number, because 11020223031 - 2¹ = 11020223029 is a prime.

It is a super-2 number, since 2×11020223031² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11020223031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020223033) 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, 1836703836 + ... + 1836703841.

It is an arithmetic number, because the mean of its divisors is an integer number (3673407678).

Almost surely, 2^11020223031 is an apocalyptic number.

11020223031 is a deficient number, since it is larger than the sum of its proper divisors (3673407681).

11020223031 is an equidigital number, since it uses as much as digits as its factorization.

11020223031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3673407680.

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

Adding to 11020223031 its reverse (13032202011), we get a palindrome (24052425042).

The spelling of 11020223031 in words is "eleven billion, twenty million, two hundred twenty-three thousand, thirty-one".