1125341121 has 4 divisors (see below), whose sum is σ = 1500454832. Its totient is φ = 750227412.

The previous prime is 1125341099. The next prime is 1125341159. The reversal of 1125341121 is 1211435211.

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 not a de Polignac number, because 1125341121 - 2¹⁴ = 1125324737 is a prime.

It is a super-2 number, since 2×1125341121² = 2532785277227073282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125321121) 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, 187556851 + ... + 187556856.

It is an arithmetic number, because the mean of its divisors is an integer number (375113708).

Almost surely, 2^1125341121 is an apocalyptic number.

It is an amenable number.

1125341121 is a deficient number, since it is larger than the sum of its proper divisors (375113711).

1125341121 is an equidigital number, since it uses as much as digits as its factorization.

1125341121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375113710.

The product of its digits is 240, while the sum is 21.

The square root of 1125341121 is about 33546.1044087089. The cubic root of 1125341121 is about 1040.1470209435.

Adding to 1125341121 its reverse (1211435211), we get a palindrome (2336776332).

The spelling of 1125341121 in words is "one billion, one hundred twenty-five million, three hundred forty-one thousand, one hundred twenty-one".