11012041231 has 4 divisors (see below), whose sum is σ = 11092421232. Its totient is φ = 10931661232.

The previous prime is 11012041219. The next prime is 11012041291. The reversal of 11012041231 is 13214021011.

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 11012041231 - 2⁵ = 11012041199 is a prime.

It is a super-2 number, since 2×11012041231² (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 (11012041291) 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, 40189795 + ... + 40190068.

It is an arithmetic number, because the mean of its divisors is an integer number (2773105308).

Almost surely, 2^11012041231 is an apocalyptic number.

11012041231 is a deficient number, since it is larger than the sum of its proper divisors (80380001).

11012041231 is an equidigital number, since it uses as much as digits as its factorization.

11012041231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80380000.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11012041231 its reverse (13214021011), we get a palindrome (24226062242).

The spelling of 11012041231 in words is "eleven billion, twelve million, forty-one thousand, two hundred thirty-one".