1031300001321 has 4 divisors (see below), whose sum is σ = 1375066668432. Its totient is φ = 687533334212.

The previous prime is 1031300001289. The next prime is 1031300001353. The reversal of 1031300001321 is 1231000031301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1031300001289) and next prime (1031300001353).

It is a cyclic number.

It is not a de Polignac number, because 1031300001321 - 2⁵ = 1031300001289 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1031300001321.

It is not an unprimeable number, because it can be changed into a prime (1031300002321) 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, 171883333551 + ... + 171883333556.

It is an arithmetic number, because the mean of its divisors is an integer number (343766667108).

Almost surely, 2^{1031300001321} is an apocalyptic number.

It is an amenable number.

1031300001321 is a deficient number, since it is larger than the sum of its proper divisors (343766667111).

1031300001321 is an equidigital number, since it uses as much as digits as its factorization.

1031300001321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343766667110.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 1031300001321 its reverse (1231000031301), we get a palindrome (2262300032622).

The spelling of 1031300001321 in words is "one trillion, thirty-one billion, three hundred million, one thousand, three hundred twenty-one".