1303213111311 has 16 divisors (see below), whose sum is σ = 1843488025344. Its totient is φ = 816076677504.

The previous prime is 1303213111309. The next prime is 1303213111349. The reversal of 1303213111311 is 1131113123031.

It is not a de Polignac number, because 1303213111311 - 2¹ = 1303213111309 is a prime.

It is a super-2 number, since 2×1303213111311² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303213111391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25375141 + ... + 25426446.

It is an arithmetic number, because the mean of its divisors is an integer number (115218001584).

Almost surely, 2^{1303213111311} is an apocalyptic number.

1303213111311 is a deficient number, since it is larger than the sum of its proper divisors (540274914033).

1303213111311 is a wasteful number, since it uses less digits than its factorization.

1303213111311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50802110.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 1303213111311 its reverse (1131113123031), we get a palindrome (2434326234342).

The spelling of 1303213111311 in words is "one trillion, three hundred three billion, two hundred thirteen million, one hundred eleven thousand, three hundred eleven".