23031311332 has 12 divisors (see below), whose sum is σ = 41065263036. Its totient is φ = 11298379040.

The previous prime is 23031311327. The next prime is 23031311333. The reversal of 23031311332 is 23311313032.

It can be written as a sum of positive squares in 2 ways, for example, as 13320391396 + 9710919936 = 115414^2 + 98544^2 .

It is a super-2 number, since 2×23031311332² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23031311333) 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, 54318919 + ... + 54319342.

It is an arithmetic number, because the mean of its divisors is an integer number (3422105253).

Almost surely, 2^23031311332 is an apocalyptic number.

It is an amenable number.

23031311332 is a deficient number, since it is larger than the sum of its proper divisors (18033951704).

23031311332 is a wasteful number, since it uses less digits than its factorization.

23031311332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108638318 (or 108638316 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 23031311332 its reverse (23311313032), we get a palindrome (46342624364).

The spelling of 23031311332 in words is "twenty-three billion, thirty-one million, three hundred eleven thousand, three hundred thirty-two".