31143103202004 has 12 divisors (see below), whose sum is σ = 72667240804704. Its totient is φ = 10381034400664.

The previous prime is 31143103201937. The next prime is 31143103202011. The reversal of 31143103202004 is 40020230134113.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1297629300072 + ... + 1297629300095.

It is an arithmetic number, because the mean of its divisors is an integer number (6055603400392).

Almost surely, 2^{31143103202004} is an apocalyptic number.

It is an amenable number.

31143103202004 is an abundant number, since it is smaller than the sum of its proper divisors (41524137602700).

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

31143103202004 is a wasteful number, since it uses less digits than its factorization.

31143103202004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2595258600174 (or 2595258600172 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31143103202004 its reverse (40020230134113), we get a palindrome (71163333336117).

The spelling of 31143103202004 in words is "thirty-one trillion, one hundred forty-three billion, one hundred three million, two hundred two thousand, four".