1111132121321 has 16 divisors (see below), whose sum is σ = 1135890708480. Its totient is φ = 1086576289680.

The previous prime is 1111132121303. The next prime is 1111132121329. The reversal of 1111132121321 is 1231212311111.

It is a cyclic number.

It is not a de Polignac number, because 1111132121321 - 2¹⁰ = 1111132120297 is a prime.

It is a super-2 number, since 2×1111132121321² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1111132121293 and 1111132121302.

It is not an unprimeable number, because it can be changed into a prime (1111132121329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25959680 + ... + 26002446.

It is an arithmetic number, because the mean of its divisors is an integer number (70993169280).

Almost surely, 2^{1111132121321} is an apocalyptic number.

It is an amenable number.

1111132121321 is a deficient number, since it is larger than the sum of its proper divisors (24758587159).

1111132121321 is a wasteful number, since it uses less digits than its factorization.

1111132121321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45124.

The product of its digits is 72, while the sum is 20.

Adding to 1111132121321 its reverse (1231212311111), we get a palindrome (2342344432432).

The spelling of 1111132121321 in words is "one trillion, one hundred eleven billion, one hundred thirty-two million, one hundred twenty-one thousand, three hundred twenty-one".