11130220231 has 8 divisors (see below), whose sum is σ = 12310348064. Its totient is φ = 9996372000.

The previous prime is 11130220207. The next prime is 11130220261. The reversal of 11130220231 is 13202203111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11130220231 - 2¹³ = 11130212039 is a prime.

It is a super-2 number, since 2×11130220231² (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 (11130220261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11569395 + ... + 11570356.

It is an arithmetic number, because the mean of its divisors is an integer number (1538793508).

Almost surely, 2^11130220231 is an apocalyptic number.

11130220231 is a deficient number, since it is larger than the sum of its proper divisors (1180127833).

11130220231 is a wasteful number, since it uses less digits than its factorization.

11130220231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23139801.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11130220231 its reverse (13202203111), we get a palindrome (24332423342).

It can be divided in two parts, 11130 and 220231, that added together give a square (231361 = 481²).

The spelling of 11130220231 in words is "eleven billion, one hundred thirty million, two hundred twenty thousand, two hundred thirty-one".