11220031323101 has 2 divisors, whose sum is σ = 11220031323102. Its totient is φ = 11220031323100.

The previous prime is 11220031323097. The next prime is 11220031323119. The reversal of 11220031323101 is 10132313002211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10750496652025 + 469534671076 = 3278795^2 + 685226^2 .

It is a cyclic number.

It is not a de Polignac number, because 11220031323101 - 2² = 11220031323097 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11220031323131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610015661550 + 5610015661551.

It is an arithmetic number, because the mean of its divisors is an integer number (5610015661551).

Almost surely, 2^{11220031323101} is an apocalyptic number.

It is an amenable number.

11220031323101 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220031323101 is an equidigital number, since it uses as much as digits as its factorization.

11220031323101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 11220031323101 its reverse (10132313002211), we get a palindrome (21352344325312).

The spelling of 11220031323101 in words is "eleven trillion, two hundred twenty billion, thirty-one million, three hundred twenty-three thousand, one hundred one".