31302044120000 has 560 divisors, whose sum is σ = 82155173329152. Its totient is φ = 11805911040000.

The previous prime is 31302044119987. The next prime is 31302044120063. The reversal of 31302044120000 is 2144020313.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 21935559287 + ... + 21935560713.

Almost surely, 2^{31302044120000} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31302044120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41077586664576).

31302044120000 is an abundant number, since it is smaller than the sum of its proper divisors (50853129209152).

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

31302044120000 is a wasteful number, since it uses less digits than its factorization.

31302044120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806 (or 1781 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 31302044120000 its reverse (2144020313), we get a palindrome (31304188140313).

The spelling of 31302044120000 in words is "thirty-one trillion, three hundred two billion, forty-four million, one hundred twenty thousand".