1213133102311 has 24 divisors (see below), whose sum is σ = 1350673833600. Its totient is φ = 1083114336960.

The previous prime is 1213133102309. The next prime is 1213133102329. The reversal of 1213133102311 is 1132013313121.

It is not a de Polignac number, because 1213133102311 - 2¹ = 1213133102309 is a prime.

It is a super-2 number, since 2×1213133102311² (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 (1213133102351) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24323946 + ... + 24373768.

It is an arithmetic number, because the mean of its divisors is an integer number (56278076400).

Almost surely, 2^{1213133102311} is an apocalyptic number.

1213133102311 is a deficient number, since it is larger than the sum of its proper divisors (137540731289).

1213133102311 is a wasteful number, since it uses less digits than its factorization.

1213133102311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51847 (or 51816 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1213133102311 its reverse (1132013313121), we get a palindrome (2345146415432).

The spelling of 1213133102311 in words is "one trillion, two hundred thirteen billion, one hundred thirty-three million, one hundred two thousand, three hundred eleven".