1100320213031 has 4 divisors (see below), whose sum is σ = 1184960229432. Its totient is φ = 1015680196632.

The previous prime is 1100320213007. The next prime is 1100320213037. The reversal of 1100320213031 is 1303120230011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1100320213031 - 2¹⁰ = 1100320212007 is a prime.

It is a super-2 number, since 2×1100320213031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100320213037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42320008181 + ... + 42320008206.

It is an arithmetic number, because the mean of its divisors is an integer number (296240057358).

Almost surely, 2^{1100320213031} is an apocalyptic number.

1100320213031 is a deficient number, since it is larger than the sum of its proper divisors (84640016401).

1100320213031 is an equidigital number, since it uses as much as digits as its factorization.

1100320213031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84640016400.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1100320213031 its reverse (1303120230011), we get a palindrome (2403440443042).

The spelling of 1100320213031 in words is "one trillion, one hundred billion, three hundred twenty million, two hundred thirteen thousand, thirty-one".