12031331311033 has 4 divisors (see below), whose sum is σ = 12083869875940. Its totient is φ = 11978792746128.

The previous prime is 12031331311031. The next prime is 12031331311093. The reversal of 12031331311033 is 33011313313021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11028064647609 + 1003266663424 = 3320853^2 + 1001632^2 .

It is a cyclic number.

It is not a de Polignac number, because 12031331311033 - 2¹ = 12031331311031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12031331310989 and 12031331311007.

It is not an unprimeable number, because it can be changed into a prime (12031331311031) 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, 26269282110 + ... + 26269282567.

It is an arithmetic number, because the mean of its divisors is an integer number (3020967468985).

Almost surely, 2^{12031331311033} is an apocalyptic number.

It is an amenable number.

12031331311033 is a deficient number, since it is larger than the sum of its proper divisors (52538564907).

12031331311033 is an equidigital number, since it uses as much as digits as its factorization.

12031331311033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52538564906.

The product of its (nonzero) digits is 1458, while the sum is 25.

Adding to 12031331311033 its reverse (33011313313021), we get a palindrome (45042644624054).

The spelling of 12031331311033 in words is "twelve trillion, thirty-one billion, three hundred thirty-one million, three hundred eleven thousand, thirty-three".