1125341421 has 32 divisors (see below), whose sum is σ = 1579678848. Its totient is φ = 711809280.

The previous prime is 1125341419. The next prime is 1125341429. The reversal of 1125341421 is 1241435211.

It is not a de Polignac number, because 1125341421 - 2¹ = 1125341419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1125341391 and 1125341400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125341429) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1158466 + ... + 1159436.

It is an arithmetic number, because the mean of its divisors is an integer number (49364964).

Almost surely, 2^1125341421 is an apocalyptic number.

It is an amenable number.

1125341421 is a deficient number, since it is larger than the sum of its proper divisors (454337427).

1125341421 is a wasteful number, since it uses less digits than its factorization.

1125341421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1261.

The product of its digits is 960, while the sum is 24.

The square root of 1125341421 is about 33546.1088801667. The cubic root of 1125341421 is about 1040.1471133730.

Adding to 1125341421 its reverse (1241435211), we get a palindrome (2366776632).

The spelling of 1125341421 in words is "one billion, one hundred twenty-five million, three hundred forty-one thousand, four hundred twenty-one".