1121000013321 has 16 divisors (see below), whose sum is σ = 1496217235968. Its totient is φ = 746558336000.

The previous prime is 1121000013277. The next prime is 1121000013347. The reversal of 1121000013321 is 1233100001211.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1121000013321 - 2⁷ = 1121000013193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1121000013321.

It is not an unprimeable number, because it can be changed into a prime (1121000015321) 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, 18301096 + ... + 18362246.

It is an arithmetic number, because the mean of its divisors is an integer number (93513577248).

Almost surely, 2^{1121000013321} is an apocalyptic number.

It is an amenable number.

1121000013321 is a deficient number, since it is larger than the sum of its proper divisors (375217222647).

1121000013321 is a wasteful number, since it uses less digits than its factorization.

1121000013321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67392.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1121000013321 its reverse (1233100001211), we get a palindrome (2354100014532).

The spelling of 1121000013321 in words is "one trillion, one hundred twenty-one billion, thirteen thousand, three hundred twenty-one".