11243231251 has 6 divisors (see below), whose sum is σ = 13078860900. Its totient is φ = 9637055316.

The previous prime is 11243231213. The next prime is 11243231269. The reversal of 11243231251 is 15213234211.

It is not a de Polignac number, because 11243231251 - 2²⁹ = 10706360339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11243231651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114726801 + ... + 114726898.

It is an arithmetic number, because the mean of its divisors is an integer number (2179810150).

Almost surely, 2^11243231251 is an apocalyptic number.

11243231251 is a deficient number, since it is larger than the sum of its proper divisors (1835629649).

11243231251 is an equidigital number, since it uses as much as digits as its factorization.

11243231251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229453713 (or 229453706 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

Adding to 11243231251 its reverse (15213234211), we get a palindrome (26456465462).

The spelling of 11243231251 in words is "eleven billion, two hundred forty-three million, two hundred thirty-one thousand, two hundred fifty-one".