11203131011312 has 20 divisors (see below), whose sum is σ = 21967585208520. Its totient is φ = 5534076763968.

The previous prime is 11203131011309. The next prime is 11203131011351. The reversal of 11203131011312 is 21311013130211.

It is a super-2 number, since 2×11203131011312² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4218044987 + ... + 4218047642.

It is an arithmetic number, because the mean of its divisors is an integer number (1098379260426).

Almost surely, 2^{11203131011312} is an apocalyptic number.

It is an amenable number.

11203131011312 is a deficient number, since it is larger than the sum of its proper divisors (10764454197208).

11203131011312 is an equidigital number, since it uses as much as digits as its factorization.

11203131011312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8436092720 (or 8436092714 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 11203131011312 its reverse (21311013130211), we get a palindrome (32514144141523).

The spelling of 11203131011312 in words is "eleven trillion, two hundred three billion, one hundred thirty-one million, eleven thousand, three hundred twelve".