1031334430221 has 6 divisors (see below), whose sum is σ = 1489705288110. Its totient is φ = 687556286808.

The previous prime is 1031334430171. The next prime is 1031334430237. The reversal of 1031334430221 is 1220344331301.

It is a happy number.

1031334430221 is a `hidden beast` number, since 1 + 0 + 3 + 1 + 3 + 3 + 4 + 430 + 221 = 666.

It can be written as a sum of positive squares in only one way, i.e., 728267664996 + 303066765225 = 853386^2 + 550515^2 .

It is not a de Polignac number, because 1031334430221 - 2¹³ = 1031334422029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031334430261) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57296357226 + ... + 57296357243.

It is an arithmetic number, because the mean of its divisors is an integer number (248284214685).

Almost surely, 2^{1031334430221} is an apocalyptic number.

It is an amenable number.

1031334430221 is a deficient number, since it is larger than the sum of its proper divisors (458370857889).

1031334430221 is a wasteful number, since it uses less digits than its factorization.

1031334430221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114592714475 (or 114592714472 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 1031334430221 its reverse (1220344331301), we get a palindrome (2251678761522).

It can be divided in two parts, 103133 and 4430221, that added together give a palindrome (4533354).

The spelling of 1031334430221 in words is "one trillion, thirty-one billion, three hundred thirty-four million, four hundred thirty thousand, two hundred twenty-one".