1121632411 has 4 divisors (see below), whose sum is σ = 1127505024. Its totient is φ = 1115759800.

The previous prime is 1121632399. The next prime is 1121632417. The reversal of 1121632411 is 1142361211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1121632411 - 2¹³ = 1121624219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121632417) 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, 2936020 + ... + 2936401.

It is an arithmetic number, because the mean of its divisors is an integer number (281876256).

Almost surely, 2^1121632411 is an apocalyptic number.

1121632411 is a deficient number, since it is larger than the sum of its proper divisors (5872613).

1121632411 is an equidigital number, since it uses as much as digits as its factorization.

1121632411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5872612.

The product of its digits is 288, while the sum is 22.

The square root of 1121632411 is about 33490.7809852204. The cubic root of 1121632411 is about 1039.0031161876.

Adding to 1121632411 its reverse (1142361211), we get a palindrome (2263993622).

The spelling of 1121632411 in words is "one billion, one hundred twenty-one million, six hundred thirty-two thousand, four hundred eleven".