1231534530301 has 2 divisors, whose sum is σ = 1231534530302. Its totient is φ = 1231534530300.

The previous prime is 1231534530277. The next prime is 1231534530341. The reversal of 1231534530301 is 1030354351321.

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., 1059404967076 + 172129563225 = 1029274^2 + 414885^2 .

It is an emirp because it is prime and its reverse (1030354351321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1231534530301 - 2¹³ = 1231534522109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1231534530341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615767265150 + 615767265151.

It is an arithmetic number, because the mean of its divisors is an integer number (615767265151).

Almost surely, 2^{1231534530301} is an apocalyptic number.

It is an amenable number.

1231534530301 is a deficient number, since it is larger than the sum of its proper divisors (1).

1231534530301 is an equidigital number, since it uses as much as digits as its factorization.

1231534530301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 1231534530301 its reverse (1030354351321), we get a palindrome (2261888881622).

The spelling of 1231534530301 in words is "one trillion, two hundred thirty-one billion, five hundred thirty-four million, five hundred thirty thousand, three hundred one".