12031331323 has 8 divisors (see below), whose sum is σ = 13164745536. Its totient is φ = 10904526600.

The previous prime is 12031331309. The next prime is 12031331327. The reversal of 12031331323 is 32313313021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12031331323 - 2²¹ = 12029234171 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12031331294 and 12031331303.

It is not an unprimeable number, because it can be changed into a prime (12031331327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1648561 + ... + 1655842.

It is an arithmetic number, because the mean of its divisors is an integer number (1645593192).

Almost surely, 2^12031331323 is an apocalyptic number.

12031331323 is a deficient number, since it is larger than the sum of its proper divisors (1133414213).

12031331323 is a wasteful number, since it uses less digits than its factorization.

12031331323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304745.

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

Adding to 12031331323 its reverse (32313313021), we get a palindrome (44344644344).

The spelling of 12031331323 in words is "twelve billion, thirty-one million, three hundred thirty-one thousand, three hundred twenty-three".