1131240322211 has 16 divisors (see below), whose sum is σ = 1176029315328. Its totient is φ = 1087372339200.

The previous prime is 1131240322189. The next prime is 1131240322237. The reversal of 1131240322211 is 1122230421311.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1131240322211 is a prime.

It is a super-3 number, since 3×1131240322211³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131240322271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249101 + ... + 1524641.

It is an arithmetic number, because the mean of its divisors is an integer number (73501832208).

Almost surely, 2^{1131240322211} is an apocalyptic number.

1131240322211 is a deficient number, since it is larger than the sum of its proper divisors (44788993117).

1131240322211 is a wasteful number, since it uses less digits than its factorization.

1131240322211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275902.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1131240322211 its reverse (1122230421311), we get a palindrome (2253470743522).

The spelling of 1131240322211 in words is "one trillion, one hundred thirty-one billion, two hundred forty million, three hundred twenty-two thousand, two hundred eleven".