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2131231013303 = 7674799486853
BaseRepresentation
bin11111000000110111010…
…001000111100110110111
321112202002011011001101012
4133000313101013212313
5234404230114411203
64311023553022435
7306655614466340
oct37006721074667
97482064131335
102131231013303
11751939389487
122a5068b54a1b
13125c8849b632
147521b63d0c7
153a688e55bd8
hex1f0374479b7

2131231013303 has 16 divisors (see below), whose sum is σ = 2477207316480. Its totient is φ = 1795747241376.

The previous prime is 2131231013297. The next prime is 2131231013347. The reversal of 2131231013303 is 3033101321312.

It is a cyclic number.

It is not a de Polignac number, because 2131231013303 - 28 = 2131231013047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131231013393) 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 15 ways as a sum of consecutive naturals, for example, 4518776 + ... + 4968077.

It is an arithmetic number, because the mean of its divisors is an integer number (154825457280).

Almost surely, 22131231013303 is an apocalyptic number.

2131231013303 is a deficient number, since it is larger than the sum of its proper divisors (345976303177).

2131231013303 is an equidigital number, since it uses as much as digits as its factorization.

2131231013303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9487406.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 2131231013303 its reverse (3033101321312), we get a palindrome (5164332334615).

The spelling of 2131231013303 in words is "two trillion, one hundred thirty-one billion, two hundred thirty-one million, thirteen thousand, three hundred three".

Divisors: 1 7 67 469 479 3353 32093 224651 9486853 66407971 635619151 4449334057 4544202587 31809418109 304461573329 2131231013303