2311211131232 has 24 divisors (see below), whose sum is σ = 4575336135552. Its totient is φ = 1149221001600.

The previous prime is 2311211131231. The next prime is 2311211131283. The reversal of 2311211131232 is 2321311121132.

It is a happy number.

It is a super-2 number, since 2×2311211131232² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2311211131198 and 2311211131207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311211131231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199511744 + ... + 199523327.

It is an arithmetic number, because the mean of its divisors is an integer number (190639005648).

Almost surely, 2^{2311211131232} is an apocalyptic number.

It is an amenable number.

2311211131232 is a deficient number, since it is larger than the sum of its proper divisors (2264125004320).

2311211131232 is a wasteful number, since it uses less digits than its factorization.

2311211131232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399035262 (or 399035254 counting only the distinct ones).

The product of its digits is 432, while the sum is 23.

Adding to 2311211131232 its reverse (2321311121132), we get a palindrome (4632522252364).

The spelling of 2311211131232 in words is "two trillion, three hundred eleven billion, two hundred eleven million, one hundred thirty-one thousand, two hundred thirty-two".