1031103223211 has 4 divisors (see below), whose sum is σ = 1066658506800. Its totient is φ = 995547939624.

The previous prime is 1031103223181. The next prime is 1031103223231. The reversal of 1031103223211 is 1123223011301.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1031103223211 - 2¹⁰ = 1031103222187 is a prime.

It is a super-2 number, since 2×1031103223211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031103223231) 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, 17777641751 + ... + 17777641808.

It is an arithmetic number, because the mean of its divisors is an integer number (266664626700).

Almost surely, 2^{1031103223211} is an apocalyptic number.

1031103223211 is a deficient number, since it is larger than the sum of its proper divisors (35555283589).

1031103223211 is an equidigital number, since it uses as much as digits as its factorization.

1031103223211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35555283588.

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

Adding to 1031103223211 its reverse (1123223011301), we get a palindrome (2154326234512).

The spelling of 1031103223211 in words is "one trillion, thirty-one billion, one hundred three million, two hundred twenty-three thousand, two hundred eleven".