1125344231 has 8 divisors (see below), whose sum is σ = 1238912400. Its totient is φ = 1013653440.

The previous prime is 1125344219. The next prime is 1125344263. The reversal of 1125344231 is 1324435211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1125344231 - 2¹⁰ = 1125343207 is a prime.

It is a super-2 number, since 2×1125344231² = 2532799276489962722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1125344231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125344281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 468086 + ... + 470483.

It is an arithmetic number, because the mean of its divisors is an integer number (154864050).

Almost surely, 2^1125344231 is an apocalyptic number.

1125344231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1125344231 is a deficient number, since it is larger than the sum of its proper divisors (113568169).

1125344231 is a wasteful number, since it uses less digits than its factorization.

1125344231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 938689.

The product of its digits is 2880, while the sum is 26.

The square root of 1125344231 is about 33546.1507627924. The cubic root of 1125344231 is about 1040.1479791283.

Adding to 1125344231 its reverse (1324435211), we get a palindrome (2449779442).

The spelling of 1125344231 in words is "one billion, one hundred twenty-five million, three hundred forty-four thousand, two hundred thirty-one".