31356605140000 has 120 divisors (see below), whose sum is σ = 88162231405248. Its totient is φ = 10750836000000.

The previous prime is 31356605139973. The next prime is 31356605140009. The reversal of 31356605140000 is 4150665313.

It is not an unprimeable number, because it can be changed into a prime (31356605140009) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 111847876 + ... + 112127875.

Almost surely, 2^{31356605140000} is an apocalyptic number.

It is an amenable number.

31356605140000 is an abundant number, since it is smaller than the sum of its proper divisors (56805626265248).

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

31356605140000 is an equidigital number, since it uses as much as digits as its factorization.

31356605140000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223975788 (or 223975765 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 34.

The spelling of 31356605140000 in words is "thirty-one trillion, three hundred fifty-six billion, six hundred five million, one hundred forty thousand".