1231341101 has 2 divisors, whose sum is σ = 1231341102. Its totient is φ = 1231341100.

The previous prime is 1231341071. The next prime is 1231341121. The reversal of 1231341101 is 1011431321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1230185476 + 1155625 = 35074^2 + 1075^2 .

It is an emirp because it is prime and its reverse (1011431321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1231341101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1231341101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231341121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615670550 + 615670551.

It is an arithmetic number, because the mean of its divisors is an integer number (615670551).

Almost surely, 2^1231341101 is an apocalyptic number.

It is an amenable number.

1231341101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231341101 is an equidigital number, since it uses as much as digits as its factorization.

1231341101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1231341101 is about 35090.4702305341. The cubic root of 1231341101 is about 1071.8305350134.

Adding to 1231341101 its reverse (1011431321), we get a palindrome (2242772422).

The spelling of 1231341101 in words is "one billion, two hundred thirty-one million, three hundred forty-one thousand, one hundred one".