31333340242000 has 40 divisors (see below), whose sum is σ = 75764016709992. Its totient is φ = 12533336096000.

The previous prime is 31333340241953. The next prime is 31333340242007. The reversal of 31333340242000 is 24204333313.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3736473536016 + 27596866705984 = 1932996^2 + 5253272^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 31333340242000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31333340242007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7833333061 + ... + 7833337060.

Almost surely, 2^{31333340242000} is an apocalyptic number.

It is an amenable number.

31333340242000 is an abundant number, since it is smaller than the sum of its proper divisors (44430676467992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31333340242000 is a wasteful number, since it uses less digits than its factorization.

31333340242000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15666670144 (or 15666670128 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 28.

Adding to 31333340242000 its reverse (24204333313), we get a palindrome (31357544575313).

The spelling of 31333340242000 in words is "thirty-one trillion, three hundred thirty-three billion, three hundred forty million, two hundred forty-two thousand".