31201103204444 has 48 divisors (see below), whose sum is σ = 54847293715200. Its totient is φ = 15530625766656.

The previous prime is 31201103204441. The next prime is 31201103204519. The reversal of 31201103204444 is 44440230110213.

It is a super-2 number, since 2×31201103204444² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31201103204441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4906602137 + ... + 4906608495.

It is an arithmetic number, because the mean of its divisors is an integer number (1142651952400).

Almost surely, 2^{31201103204444} is an apocalyptic number.

It is an amenable number.

31201103204444 is a deficient number, since it is larger than the sum of its proper divisors (23646190510756).

31201103204444 is a wasteful number, since it uses less digits than its factorization.

31201103204444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12522 (or 12520 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 31201103204444 its reverse (44440230110213), we get a palindrome (75641333314657).

The spelling of 31201103204444 in words is "thirty-one trillion, two hundred one billion, one hundred three million, two hundred four thousand, four hundred forty-four".