1310021001211 has 32 divisors (see below), whose sum is σ = 1425690201600. Its totient is φ = 1196559978240.

The previous prime is 1310021001199. The next prime is 1310021001257. The reversal of 1310021001211 is 1121001200131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1310021001211 - 2⁷ = 1310021001083 is a prime.

It is a super-2 number, since 2×1310021001211² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1310021001191 and 1310021001200.

It is not an unprimeable number, because it can be changed into a prime (1310021005211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 517589016 + ... + 517591546.

It is an arithmetic number, because the mean of its divisors is an integer number (44552818800).

Almost surely, 2^{1310021001211} is an apocalyptic number.

1310021001211 is a deficient number, since it is larger than the sum of its proper divisors (115669200389).

1310021001211 is a wasteful number, since it uses less digits than its factorization.

1310021001211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3699.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1310021001211 its reverse (1121001200131), we get a palindrome (2431022201342).

The spelling of 1310021001211 in words is "one trillion, three hundred ten billion, twenty-one million, one thousand, two hundred eleven".