1125241321 has 4 divisors (see below), whose sum is σ = 1130896000. Its totient is φ = 1119586644.

The previous prime is 1125241301. The next prime is 1125241331. The reversal of 1125241321 is 1231425211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1125241321 - 2¹³ = 1125233129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1125241292 and 1125241301.

It is not an unprimeable number, because it can be changed into a prime (1125241301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2827041 + ... + 2827438.

It is an arithmetic number, because the mean of its divisors is an integer number (282724000).

Almost surely, 2^1125241321 is an apocalyptic number.

It is an amenable number.

1125241321 is a deficient number, since it is larger than the sum of its proper divisors (5654679).

1125241321 is an equidigital number, since it uses as much as digits as its factorization.

1125241321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5654678.

The product of its digits is 480, while the sum is 22.

The square root of 1125241321 is about 33544.6168706694. The cubic root of 1125241321 is about 1040.1162718253.

Adding to 1125241321 its reverse (1231425211), we get a palindrome (2356666532).

The spelling of 1125241321 in words is "one billion, one hundred twenty-five million, two hundred forty-one thousand, three hundred twenty-one".