1321441131 has 8 divisors (see below), whose sum is σ = 1770866064. Its totient is φ = 876488480.

The previous prime is 1321441081. The next prime is 1321441171. The reversal of 1321441131 is 1311441231.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1321441131 is a prime.

It is a super-2 number, since 2×1321441131² = 3492413325397118322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1321441098 and 1321441107.

It is not an unprimeable number, because it can be changed into a prime (1321441171) 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, 1117380 + ... + 1118561.

It is an arithmetic number, because the mean of its divisors is an integer number (221358258).

Almost surely, 2^1321441131 is an apocalyptic number.

1321441131 is a deficient number, since it is larger than the sum of its proper divisors (449424933).

1321441131 is a wasteful number, since it uses less digits than its factorization.

1321441131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236141.

The product of its digits is 288, while the sum is 21.

The square root of 1321441131 is about 36351.6317515459. The cubic root of 1321441131 is about 1097.3603736147.

Adding to 1321441131 its reverse (1311441231), we get a palindrome (2632882362).

It can be divided in two parts, 13214 and 41131, that added together give a palindrome (54345).

The spelling of 1321441131 in words is "one billion, three hundred twenty-one million, four hundred forty-one thousand, one hundred thirty-one".