31112003344201 has 16 divisors (see below), whose sum is σ = 33691715762320. Its totient is φ = 28559267297280.

The previous prime is 31112003344157. The next prime is 31112003344211. The reversal of 31112003344201 is 10244330021113.

It can be written as a sum of positive squares in 8 ways, for example, as 2997607449600 + 28114395894601 = 1731360^2 + 5302301^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31112003344201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31112003344211) 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, 4781820 + ... + 9224413.

It is an arithmetic number, because the mean of its divisors is an integer number (2105732235145).

Almost surely, 2^{31112003344201} is an apocalyptic number.

It is an amenable number.

31112003344201 is a deficient number, since it is larger than the sum of its proper divisors (2579712418119).

31112003344201 is a wasteful number, since it uses less digits than its factorization.

31112003344201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14007196.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 31112003344201 its reverse (10244330021113), we get a palindrome (41356333365314).

The spelling of 31112003344201 in words is "thirty-one trillion, one hundred twelve billion, three million, three hundred forty-four thousand, two hundred one".