1121526331 has 2 divisors, whose sum is σ = 1121526332. Its totient is φ = 1121526330.

The previous prime is 1121526323. The next prime is 1121526349. The reversal of 1121526331 is 1336251211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121526331 - 2³ = 1121526323 is a prime.

It is a super-3 number, since 3×1121526331³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1121526296 and 1121526305.

It is not a weakly prime, because it can be changed into another prime (1121526311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560763165 + 560763166.

It is an arithmetic number, because the mean of its divisors is an integer number (560763166).

Almost surely, 2^1121526331 is an apocalyptic number.

1121526331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121526331 is an equidigital number, since it uses as much as digits as its factorization.

1121526331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 25.

The square root of 1121526331 is about 33489.1972283601. The cubic root of 1121526331 is about 1038.9703600831.

Adding to 1121526331 its reverse (1336251211), we get a palindrome (2457777542).

The spelling of 1121526331 in words is "one billion, one hundred twenty-one million, five hundred twenty-six thousand, three hundred thirty-one".