1101311202321 has 48 divisors (see below), whose sum is σ = 1748510644608. Its totient is φ = 662426784000.

The previous prime is 1101311202293. The next prime is 1101311202323. The reversal of 1101311202321 is 1232021131011.

1101311202321 is a `hidden beast` number, since 1 + 10 + 1 + 311 + 20 + 2 + 321 = 666.

It is not a de Polignac number, because 1101311202321 - 2⁵ = 1101311202289 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1101311202294 and 1101311202303.

It is not an unprimeable number, because it can be changed into a prime (1101311202323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16365475 + ... + 16432631.

It is an arithmetic number, because the mean of its divisors is an integer number (36427305096).

Almost surely, 2^{1101311202321} is an apocalyptic number.

1101311202321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1101311202321 is a deficient number, since it is larger than the sum of its proper divisors (647199442287).

1101311202321 is a wasteful number, since it uses less digits than its factorization.

1101311202321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68422 (or 68419 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1101311202321 its reverse (1232021131011), we get a palindrome (2333332333332).

The spelling of 1101311202321 in words is "one trillion, one hundred one billion, three hundred eleven million, two hundred two thousand, three hundred twenty-one".