1130313131221 has 8 divisors (see below), whose sum is σ = 1153272446424. Its totient is φ = 1107584563200.

The previous prime is 1130313131111. The next prime is 1130313131267. The reversal of 1130313131221 is 1221313130311.

It can be written as a sum of positive squares in 4 ways, for example, as 216118992996 + 914194138225 = 464886^2 + 956135^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1130313131221 - 2¹⁷ = 1130313000149 is a prime.

It is a super-2 number, since 2×1130313131221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1130313131192 and 1130313131201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130313101221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57676900 + ... + 57696493.

It is an arithmetic number, because the mean of its divisors is an integer number (144159055803).

Almost surely, 2^{1130313131221} is an apocalyptic number.

It is an amenable number.

1130313131221 is a deficient number, since it is larger than the sum of its proper divisors (22959315203).

1130313131221 is a wasteful number, since it uses less digits than its factorization.

1130313131221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115373591.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1130313131221 its reverse (1221313130311), we get a palindrome (2351626261532).

The spelling of 1130313131221 in words is "one trillion, one hundred thirty billion, three hundred thirteen million, one hundred thirty-one thousand, two hundred twenty-one".