10131321 has 8 divisors (see below), whose sum is σ = 13763520. Its totient is φ = 6626672.

The previous prime is 10131311. The next prime is 10131323. The reversal of 10131321 is 12313101.

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 10131321 - 2⁶ = 10131257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10131297 and 10131306.

It is not an unprimeable number, because it can be changed into a prime (10131323) 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, 31701 + ... + 32018.

It is an arithmetic number, because the mean of its divisors is an integer number (1720440).

Almost surely, 2^10131321 is an apocalyptic number.

It is an amenable number.

10131321 is a deficient number, since it is larger than the sum of its proper divisors (3632199).

10131321 is an equidigital number, since it uses as much as digits as its factorization.

10131321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63775.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 10131321 is about 3182.9736096927. The cubic root of 10131321 is about 216.3824457341.

Adding to 10131321 its reverse (12313101), we get a palindrome (22444422).

The spelling of 10131321 in words is "ten million, one hundred thirty-one thousand, three hundred twenty-one".