31103141220201 has 8 divisors (see below), whose sum is σ = 41471122322080. Its totient is φ = 20735293799232.

The previous prime is 31103141220161. The next prime is 31103141220209. The reversal of 31103141220201 is 10202214130113.

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

It is not a de Polignac number, because 31103141220201 - 2¹⁷ = 31103141089129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31103141220209) 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, 32876071 + ... + 33808908.

It is an arithmetic number, because the mean of its divisors is an integer number (5183890290260).

Almost surely, 2^{31103141220201} is an apocalyptic number.

It is an amenable number.

31103141220201 is a deficient number, since it is larger than the sum of its proper divisors (10367981101879).

31103141220201 is a wasteful number, since it uses less digits than its factorization.

31103141220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66840455.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 31103141220201 its reverse (10202214130113), we get a palindrome (41305355350314).

The spelling of 31103141220201 in words is "thirty-one trillion, one hundred three billion, one hundred forty-one million, two hundred twenty thousand, two hundred one".