1213331233011 has 32 divisors (see below), whose sum is σ = 1657585264896. Its totient is φ = 789202128000.

The previous prime is 1213331232989. The next prime is 1213331233019. The reversal of 1213331233011 is 1103321333121.

It is not a de Polignac number, because 1213331233011 - 2¹⁴ = 1213331216627 is a prime.

It is a super-2 number, since 2×1213331233011² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1213331233019) 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, 60665665 + ... + 60685661.

It is an arithmetic number, because the mean of its divisors is an integer number (51799539528).

Almost surely, 2^{1213331233011} is an apocalyptic number.

1213331233011 is a deficient number, since it is larger than the sum of its proper divisors (444254031885).

1213331233011 is a wasteful number, since it uses less digits than its factorization.

1213331233011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22723.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 1213331233011 its reverse (1103321333121), we get a palindrome (2316652566132).

The spelling of 1213331233011 in words is "one trillion, two hundred thirteen billion, three hundred thirty-one million, two hundred thirty-three thousand, eleven".