1243432103201 has 2 divisors, whose sum is σ = 1243432103202. Its totient is φ = 1243432103200.

The previous prime is 1243432103149. The next prime is 1243432103213. The reversal of 1243432103201 is 1023012343421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 843724917025 + 399707186176 = 918545^2 + 632224^2 .

It is an emirp because it is prime and its reverse (1023012343421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1243432103201 - 2³⁴ = 1226252234017 is a prime.

It is a super-2 number, since 2×1243432103201² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1243432103261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621716051600 + 621716051601.

It is an arithmetic number, because the mean of its divisors is an integer number (621716051601).

Almost surely, 2^{1243432103201} is an apocalyptic number.

It is an amenable number.

1243432103201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1243432103201 is an equidigital number, since it uses as much as digits as its factorization.

1243432103201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1243432103201 its reverse (1023012343421), we get a palindrome (2266444446622).

The spelling of 1243432103201 in words is "one trillion, two hundred forty-three billion, four hundred thirty-two million, one hundred three thousand, two hundred one".