2101203311201 has 4 divisors (see below), whose sum is σ = 2105380654272. Its totient is φ = 2097025968132.

The previous prime is 2101203311173. The next prime is 2101203311203. The reversal of 2101203311201 is 1021133021012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2101203311201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2101203311201.

It is not an unprimeable number, because it can be changed into a prime (2101203311203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2088670781 + ... + 2088671786.

It is an arithmetic number, because the mean of its divisors is an integer number (526345163568).

Almost surely, 2^{2101203311201} is an apocalyptic number.

It is an amenable number.

2101203311201 is a deficient number, since it is larger than the sum of its proper divisors (4177343071).

2101203311201 is an equidigital number, since it uses as much as digits as its factorization.

2101203311201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4177343070.

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

Adding to 2101203311201 its reverse (1021133021012), we get a palindrome (3122336332213).

It can be divided in two parts, 2101 and 203311201, that added together give a palindrome (203313302).

The spelling of 2101203311201 in words is "two trillion, one hundred one billion, two hundred three million, three hundred eleven thousand, two hundred one".