201211313108 has 24 divisors (see below), whose sum is σ = 379704310440. Its totient is φ = 92744709120.

The previous prime is 201211313003. The next prime is 201211313131. The reversal of 201211313108 is 801313112102.

It can be written as a sum of positive squares in 4 ways, for example, as 10680809104 + 190530504004 = 103348^2 + 436498^2 .

It is a super-2 number, since 2×201211313108² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2502773 + ... + 2581916.

It is an arithmetic number, because the mean of its divisors is an integer number (15821012935).

Almost surely, 2^201211313108 is an apocalyptic number.

It is an amenable number.

201211313108 is a deficient number, since it is larger than the sum of its proper divisors (178492997332).

201211313108 is a wasteful number, since it uses less digits than its factorization.

201211313108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5085467 (or 5085465 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 201211313108 in words is "two hundred one billion, two hundred eleven million, three hundred thirteen thousand, one hundred eight".