11121341231 has 192 divisors, whose sum is σ = 17374694400. Its totient is φ = 6879375360.

The previous prime is 11121341227. The next prime is 11121341251. The reversal of 11121341231 is 13214312111.

It is not a de Polignac number, because 11121341231 - 2² = 11121341227 is a prime.

It is a super-2 number, since 2×11121341231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121341221) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 188497280 + ... + 188497338.

It is an arithmetic number, because the mean of its divisors is an integer number (90493200).

Almost surely, 2^11121341231 is an apocalyptic number.

11121341231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11121341231 is a deficient number, since it is larger than the sum of its proper divisors (6253353169).

11121341231 is a wasteful number, since it uses less digits than its factorization.

11121341231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190 (or 179 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

Adding to 11121341231 its reverse (13214312111), we get a palindrome (24335653342).

The spelling of 11121341231 in words is "eleven billion, one hundred twenty-one million, three hundred forty-one thousand, two hundred thirty-one".