1111202001321 has 16 divisors (see below), whose sum is σ = 1564076256000. Its totient is φ = 699789265488.

The previous prime is 1111202001307. The next prime is 1111202001337. The reversal of 1111202001321 is 1231002021111.

It is not a de Polignac number, because 1111202001321 - 2⁵ = 1111202001289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1111202001321.

It is not an unprimeable number, because it can be changed into a prime (1111202001391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28070671 + ... + 28110228.

It is an arithmetic number, because the mean of its divisors is an integer number (97754766000).

Almost surely, 2^{1111202001321} is an apocalyptic number.

It is an amenable number.

1111202001321 is a deficient number, since it is larger than the sum of its proper divisors (452874254679).

1111202001321 is a wasteful number, since it uses less digits than its factorization.

1111202001321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56181268.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1111202001321 its reverse (1231002021111), we get a palindrome (2342204022432).

The spelling of 1111202001321 in words is "one trillion, one hundred eleven billion, two hundred two million, one thousand, three hundred twenty-one".