1021133231201 has 2 divisors, whose sum is σ = 1021133231202. Its totient is φ = 1021133231200.

The previous prime is 1021133231093. The next prime is 1021133231213. The reversal of 1021133231201 is 1021323311201.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 764489671201 + 256643560000 = 874351^2 + 506600^2 .

It is an emirp because it is prime and its reverse (1021323311201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1021133231201 - 2²⁶ = 1021066122337 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021133234201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510566615600 + 510566615601.

It is an arithmetic number, because the mean of its divisors is an integer number (510566615601).

Almost surely, 2^{1021133231201} is an apocalyptic number.

It is an amenable number.

1021133231201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021133231201 is an equidigital number, since it uses as much as digits as its factorization.

1021133231201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1021133231201 its reverse (1021323311201), we get a palindrome (2042456542402).

The spelling of 1021133231201 in words is "one trillion, twenty-one billion, one hundred thirty-three million, two hundred thirty-one thousand, two hundred one".