11010312231 has 16 divisors (see below), whose sum is σ = 15189542400. Its totient is φ = 7085742048.

The previous prime is 11010312217. The next prime is 11010312331. The reversal of 11010312231 is 13221301011.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-11010312231 is a prime.

It is a super-2 number, since 2×11010312231² (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 11010312231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11010312031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 656310 + ... + 672876.

It is an arithmetic number, because the mean of its divisors is an integer number (949346400).

Almost surely, 2^11010312231 is an apocalyptic number.

11010312231 is a deficient number, since it is larger than the sum of its proper divisors (4179230169).

11010312231 is a wasteful number, since it uses less digits than its factorization.

11010312231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24238.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11010312231 its reverse (13221301011), we get a palindrome (24231613242).

The spelling of 11010312231 in words is "eleven billion, ten million, three hundred twelve thousand, two hundred thirty-one".