1203231101201 has 2 divisors, whose sum is σ = 1203231101202. Its totient is φ = 1203231101200.

The previous prime is 1203231101179. The next prime is 1203231101203. The reversal of 1203231101201 is 1021011323021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 985604186176 + 217626915025 = 992776^2 + 466505^2 .

It is an emirp because it is prime and its reverse (1021011323021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1203231101201 - 2¹⁰ = 1203231100177 is a prime.

It is a super-2 number, since 2×1203231101201² (a number of 25 digits) contains 22 as substring.

Together with 1203231101203, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1203231101201.

It is not a weakly prime, because it can be changed into another prime (1203231101203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601615550600 + 601615550601.

It is an arithmetic number, because the mean of its divisors is an integer number (601615550601).

Almost surely, 2^{1203231101201} is an apocalyptic number.

It is an amenable number.

1203231101201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203231101201 is an equidigital number, since it uses as much as digits as its factorization.

1203231101201 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.

Adding to 1203231101201 its reverse (1021011323021), we get a palindrome (2224242424222).

The spelling of 1203231101201 in words is "one trillion, two hundred three billion, two hundred thirty-one million, one hundred one thousand, two hundred one".