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2131231202211 = 33719200281101
BaseRepresentation
bin11111000000110111010…
…001110101101110100011
321112202002011111122111210
4133000313101311232203
5234404230141432321
64311024001041203
7306655616214156
oct37006721655643
97482064448453
102131231202211
117519394a8401
122a5069026203
13125c88536607
147521b68bc9d
153a688e91b76
hex1f037475ba3

2131231202211 has 8 divisors (see below), whose sum is σ = 2918442727504. Its totient is φ = 1382420239200.

The previous prime is 2131231202201. The next prime is 2131231202279. The reversal of 2131231202211 is 1122021321312.

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

It is not a de Polignac number, because 2131231202211 - 25 = 2131231202179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131231202201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9600140440 + ... + 9600140661.

It is an arithmetic number, because the mean of its divisors is an integer number (364805340938).

Almost surely, 22131231202211 is an apocalyptic number.

2131231202211 is a deficient number, since it is larger than the sum of its proper divisors (787211525293).

2131231202211 is a wasteful number, since it uses less digits than its factorization.

2131231202211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19200281141.

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

Adding to 2131231202211 its reverse (1122021321312), we get a palindrome (3253252523523).

The spelling of 2131231202211 in words is "two trillion, one hundred thirty-one billion, two hundred thirty-one million, two hundred two thousand, two hundred eleven".

Divisors: 1 3 37 111 19200281101 57600843303 710410400737 2131231202211