11203131012 has 24 divisors (see below), whose sum is σ = 26410132896. Its totient is φ = 3695877888.

The previous prime is 11203131001. The next prime is 11203131031. The reversal of 11203131012 is 21013130211.

It is a happy number.

It is a super-2 number, since 2×11203131012² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11203130982 and 11203131000.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4811178 + ... + 4813505.

It is an arithmetic number, because the mean of its divisors is an integer number (1100422204).

Almost surely, 2^11203131012 is an apocalyptic number.

11203131012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11203131012 is an abundant number, since it is smaller than the sum of its proper divisors (15207001884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11203131012 is a wasteful number, since it uses less digits than its factorization.

11203131012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9624787 (or 9624785 counting only the distinct ones).

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

Adding to 11203131012 its reverse (21013130211), we get a palindrome (32216261223).

The spelling of 11203131012 in words is "eleven billion, two hundred three million, one hundred thirty-one thousand, twelve".