31023031011332 has 6 divisors (see below), whose sum is σ = 54290304269838. Its totient is φ = 15511515505664.

The previous prime is 31023031011331. The next prime is 31023031011337. The reversal of 31023031011332 is 23311013032013.

It can be written as a sum of positive squares in only one way, i.e., 31011266138176 + 11764873156 = 5568776^2 + 108466^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31023031011298 and 31023031011307.

It is not an unprimeable number, because it can be changed into a prime (31023031011331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3877878876413 + ... + 3877878876420.

It is an arithmetic number, because the mean of its divisors is an integer number (9048384044973).

Almost surely, 2^{31023031011332} is an apocalyptic number.

It is an amenable number.

31023031011332 is a deficient number, since it is larger than the sum of its proper divisors (23267273258506).

31023031011332 is a wasteful number, since it uses less digits than its factorization.

31023031011332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7755757752837 (or 7755757752835 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 31023031011332 its reverse (23311013032013), we get a palindrome (54334044043345).

The spelling of 31023031011332 in words is "thirty-one trillion, twenty-three billion, thirty-one million, eleven thousand, three hundred thirty-two".