1121331231011 has 8 divisors (see below), whose sum is σ = 1122154312944. Its totient is φ = 1120508444160.

The previous prime is 1121331231001. The next prime is 1121331231023. The reversal of 1121331231011 is 1101321331211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121331231011 - 2³⁰ = 1120257489187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121331231001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7837331 + ... + 7979123.

It is an arithmetic number, because the mean of its divisors is an integer number (140269289118).

Almost surely, 2^{1121331231011} is an apocalyptic number.

1121331231011 is a deficient number, since it is larger than the sum of its proper divisors (823081933).

1121331231011 is a wasteful number, since it uses less digits than its factorization.

1121331231011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147541.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1121331231011 its reverse (1101321331211), we get a palindrome (2222652562222).

The spelling of 1121331231011 in words is "one trillion, one hundred twenty-one billion, three hundred thirty-one million, two hundred thirty-one thousand, eleven".