1133444111421 has 32 divisors (see below), whose sum is σ = 1560194391168. Its totient is φ = 731384432640.

The previous prime is 1133444111419. The next prime is 1133444111477. The reversal of 1133444111421 is 1241114443311.

It is not a de Polignac number, because 1133444111421 - 2¹ = 1133444111419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133444111321) 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, 16643881 + ... + 16711841.

It is an arithmetic number, because the mean of its divisors is an integer number (48756074724).

Almost surely, 2^{1133444111421} is an apocalyptic number.

It is an amenable number.

1133444111421 is a deficient number, since it is larger than the sum of its proper divisors (426750279747).

1133444111421 is a wasteful number, since it uses less digits than its factorization.

1133444111421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68781.

The product of its digits is 4608, while the sum is 30.

Adding to 1133444111421 its reverse (1241114443311), we get a palindrome (2374558554732).

The spelling of 1133444111421 in words is "one trillion, one hundred thirty-three billion, four hundred forty-four million, one hundred eleven thousand, four hundred twenty-one".