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2131231201033 = 11193748291003
BaseRepresentation
bin11111000000110111010…
…001110101011100001001
321112202002011111120220011
4133000313101311130021
5234404230141413113
64311024001031521
7306655616210554
oct37006721653411
97482064446804
102131231201033
117519394a7530
122a50690255a1
13125c88535c0c
147521b68b69b
153a688e9163d
hex1f037475709

2131231201033 has 4 divisors (see below), whose sum is σ = 2324979492048. Its totient is φ = 1937482910020.

The previous prime is 2131231201019. The next prime is 2131231201039. The reversal of 2131231201033 is 3301021321312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2131231201033 - 213 = 2131231192841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2131231200995 and 2131231201013.

It is not an unprimeable number, because it can be changed into a prime (2131231201039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96874145491 + ... + 96874145512.

It is an arithmetic number, because the mean of its divisors is an integer number (581244873012).

Almost surely, 22131231201033 is an apocalyptic number.

It is an amenable number.

2131231201033 is a deficient number, since it is larger than the sum of its proper divisors (193748291015).

2131231201033 is a wasteful number, since it uses less digits than its factorization.

2131231201033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193748291014.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2131231201033 its reverse (3301021321312), we get a palindrome (5432252522345).

The spelling of 2131231201033 in words is "two trillion, one hundred thirty-one billion, two hundred thirty-one million, two hundred one thousand, thirty-three".

Divisors: 1 11 193748291003 2131231201033