12311201101 has 2 divisors, whose sum is σ = 12311201102. Its totient is φ = 12311201100.

The previous prime is 12311201087. The next prime is 12311201137. The reversal of 12311201101 is 10110211321.

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., 11550875625 + 760325476 = 107475^2 + 27574^2 .

It is a cyclic number.

It is not a de Polignac number, because 12311201101 - 2¹⁷ = 12311070029 is a prime.

It is a super-2 number, since 2×12311201101² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12311201801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155600550 + 6155600551.

It is an arithmetic number, because the mean of its divisors is an integer number (6155600551).

Almost surely, 2^12311201101 is an apocalyptic number.

It is an amenable number.

12311201101 is a deficient number, since it is larger than the sum of its proper divisors (1).

12311201101 is an equidigital number, since it uses as much as digits as its factorization.

12311201101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 12311201101 its reverse (10110211321), we get a palindrome (22421412422).

The spelling of 12311201101 in words is "twelve billion, three hundred eleven million, two hundred one thousand, one hundred one".