1121312003201 has 4 divisors (see below), whose sum is σ = 1207566772692. Its totient is φ = 1035057233712.

The previous prime is 1121312003191. The next prime is 1121312003213. The reversal of 1121312003201 is 1023002131211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 175213402225 + 946098600976 = 418585^2 + 972676^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121312003201 - 2³⁰ = 1120238261377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1121312003201.

It is not an unprimeable number, because it can be changed into a prime (1121312003401) 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, 43127384726 + ... + 43127384751.

It is an arithmetic number, because the mean of its divisors is an integer number (301891693173).

Almost surely, 2^{1121312003201} is an apocalyptic number.

It is an amenable number.

1121312003201 is a deficient number, since it is larger than the sum of its proper divisors (86254769491).

1121312003201 is an equidigital number, since it uses as much as digits as its factorization.

1121312003201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86254769490.

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

Adding to 1121312003201 its reverse (1023002131211), we get a palindrome (2144314134412).

The spelling of 1121312003201 in words is "one trillion, one hundred twenty-one billion, three hundred twelve million, three thousand, two hundred one".