1121311425 has 24 divisors (see below), whose sum is σ = 1996511104. Its totient is φ = 552029760.

The previous prime is 1121311423. The next prime is 1121311439. The reversal of 1121311425 is 5241131211.

It is not a de Polignac number, because 1121311425 - 2¹ = 1121311423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121311423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 574057 + ... + 576006.

Almost surely, 2^1121311425 is an apocalyptic number.

1121311425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1121311425 is a deficient number, since it is larger than the sum of its proper divisors (875199679).

1121311425 is a wasteful number, since it uses less digits than its factorization.

1121311425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1150089 (or 1150084 counting only the distinct ones).

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

The square root of 1121311425 is about 33485.9884877242. The cubic root of 1121311425 is about 1038.9039936141.

Adding to 1121311425 its reverse (5241131211), we get a palindrome (6362442636).

The spelling of 1121311425 in words is "one billion, one hundred twenty-one million, three hundred eleven thousand, four hundred twenty-five".