11231231102 has 32 divisors (see below), whose sum is σ = 21157752000. Its totient is φ = 4443120864.

The previous prime is 11231231069. The next prime is 11231231117. The reversal of 11231231102 is 20113213211.

It is a super-2 number, since 2×11231231102² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 620777 + ... + 638612.

It is an arithmetic number, because the mean of its divisors is an integer number (661179750).

Almost surely, 2^11231231102 is an apocalyptic number.

11231231102 is a deficient number, since it is larger than the sum of its proper divisors (9926520898).

11231231102 is a wasteful number, since it uses less digits than its factorization.

11231231102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259425 (or 1259411 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11231231102 its reverse (20113213211), we get a palindrome (31344444313).

The spelling of 11231231102 in words is "eleven billion, two hundred thirty-one million, two hundred thirty-one thousand, one hundred two".