11002111231 has 8 divisors (see below), whose sum is σ = 11371578624. Its totient is φ = 10638284760.

The previous prime is 11002111217. The next prime is 11002111259. The reversal of 11002111231 is 13211120011.

It is a happy number.

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 11002111231 - 2¹³ = 11002103039 is a prime.

It is a super-2 number, since 2×11002111231² (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 (11002111261) 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, 1406265 + ... + 1414066.

It is an arithmetic number, because the mean of its divisors is an integer number (1421447328).

Almost surely, 2^11002111231 is an apocalyptic number.

11002111231 is a deficient number, since it is larger than the sum of its proper divisors (369467393).

11002111231 is an equidigital number, since it uses as much as digits as its factorization.

11002111231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2820461.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 11002111231 its reverse (13211120011), we get a palindrome (24213231242).

The spelling of 11002111231 in words is "eleven billion, two million, one hundred eleven thousand, two hundred thirty-one".