31100121122201 has 8 divisors (see below), whose sum is σ = 31103962364160. Its totient is φ = 31096280150992.

The previous prime is 31100121122171. The next prime is 31100121122281. The reversal of 31100121122201 is 10222112100113.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31100121122201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31100121122201.

It is not an unprimeable number, because it can be changed into a prime (31100121122281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 310612535 + ... + 310712643.

It is an arithmetic number, because the mean of its divisors is an integer number (3887995295520).

Almost surely, 2^{31100121122201} is an apocalyptic number.

It is an amenable number.

31100121122201 is a deficient number, since it is larger than the sum of its proper divisors (3841241959).

31100121122201 is a wasteful number, since it uses less digits than its factorization.

31100121122201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135375.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 31100121122201 its reverse (10222112100113), we get a palindrome (41322233222314).

The spelling of 31100121122201 in words is "thirty-one trillion, one hundred billion, one hundred twenty-one million, one hundred twenty-two thousand, two hundred one".