1151123361 has 32 divisors (see below), whose sum is σ = 1612742400. Its totient is φ = 729388800.

The previous prime is 1151123359. The next prime is 1151123381. The reversal of 1151123361 is 1633211511.

1151123361 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1151123361 - 2¹ = 1151123359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1151123321) 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, 2363460 + ... + 2363946.

It is an arithmetic number, because the mean of its divisors is an integer number (50398200).

Almost surely, 2^1151123361 is an apocalyptic number.

It is an amenable number.

1151123361 is a deficient number, since it is larger than the sum of its proper divisors (461619039).

1151123361 is a wasteful number, since it uses less digits than its factorization.

1151123361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 889.

The product of its digits is 540, while the sum is 24.

The square root of 1151123361 is about 33928.2089270860. The cubic root of 1151123361 is about 1048.0305823219.

Adding to 1151123361 its reverse (1633211511), we get a palindrome (2784334872).

The spelling of 1151123361 in words is "one billion, one hundred fifty-one million, one hundred twenty-three thousand, three hundred sixty-one".