1031203221133 has 4 divisors (see below), whose sum is σ = 1031213952028. Its totient is φ = 1031192490240.

The previous prime is 1031203221109. The next prime is 1031203221197. The reversal of 1031203221133 is 3311223021301.

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 71739872649 + 959463348484 = 267843^2 + 979522^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031203221133 - 2¹⁷ = 1031203090061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031203281133) 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, 5219988 + ... + 5413933.

It is an arithmetic number, because the mean of its divisors is an integer number (257803488007).

Almost surely, 2^{1031203221133} is an apocalyptic number.

It is an amenable number.

1031203221133 is a deficient number, since it is larger than the sum of its proper divisors (10730895).

1031203221133 is an equidigital number, since it uses as much as digits as its factorization.

1031203221133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10730894.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1031203221133 its reverse (3311223021301), we get a palindrome (4342426242434).

The spelling of 1031203221133 in words is "one trillion, thirty-one billion, two hundred three million, two hundred twenty-one thousand, one hundred thirty-three".