1310001211321 has 8 divisors (see below), whose sum is σ = 1475191980288. Its totient is φ = 1152493734000.

The previous prime is 1310001211313. The next prime is 1310001211369. The reversal of 1310001211321 is 1231121000131.

It is a happy number.

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 1310001211321 - 2³ = 1310001211313 is a prime.

It is a super-2 number, since 2×1310001211321² (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 = 1310001211295 and 1310001211304.

It is not an unprimeable number, because it can be changed into a prime (1310001211921) 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, 1920822550 + ... + 1920823231.

It is an arithmetic number, because the mean of its divisors is an integer number (184398997536).

Almost surely, 2^{1310001211321} is an apocalyptic number.

1310001211321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1310001211321 is a deficient number, since it is larger than the sum of its proper divisors (165190768967).

1310001211321 is a wasteful number, since it uses less digits than its factorization.

1310001211321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3841645823.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1310001211321 its reverse (1231121000131), we get a palindrome (2541122211452).

The spelling of 1310001211321 in words is "one trillion, three hundred ten billion, one million, two hundred eleven thousand, three hundred twenty-one".