31204330442201 has 24 divisors (see below), whose sum is σ = 37196830196064. Its totient is φ = 26086747619520.

The previous prime is 31204330442149. The next prime is 31204330442237. The reversal of 31204330442201 is 10224403340213.

It is a de Polignac number, because none of the positive numbers 2^k-31204330442201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31204330442261) 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 23 ways as a sum of consecutive naturals, for example, 9260300 + ... + 12172173.

It is an arithmetic number, because the mean of its divisors is an integer number (1549867924836).

Almost surely, 2^{31204330442201} is an apocalyptic number.

It is an amenable number.

31204330442201 is a deficient number, since it is larger than the sum of its proper divisors (5992499753863).

31204330442201 is a wasteful number, since it uses less digits than its factorization.

31204330442201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21433221 (or 21433214 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 31204330442201 its reverse (10224403340213), we get a palindrome (41428733782414).

The spelling of 31204330442201 in words is "thirty-one trillion, two hundred four billion, three hundred thirty million, four hundred forty-two thousand, two hundred one".