11203233131 has 16 divisors (see below), whose sum is σ = 11979120000. Its totient is φ = 10446573888.

The previous prime is 11203233103. The next prime is 11203233137. The reversal of 11203233131 is 13133230211.

It is a cyclic number.

It is not a de Polignac number, because 11203233131 - 2¹⁴ = 11203216747 is a prime.

It is a super-2 number, since 2×11203233131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11203233137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 684020 + ... + 700206.

It is an arithmetic number, because the mean of its divisors is an integer number (748695000).

Almost surely, 2^11203233131 is an apocalyptic number.

11203233131 is a deficient number, since it is larger than the sum of its proper divisors (775886869).

11203233131 is a wasteful number, since it uses less digits than its factorization.

11203233131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16778.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 11203233131 its reverse (13133230211), we get a palindrome (24336463342).

The spelling of 11203233131 in words is "eleven billion, two hundred three million, two hundred thirty-three thousand, one hundred thirty-one".