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2131430141231 = 194721647110261
BaseRepresentation
bin11111000001000011001…
…000101110110100101111
321112202121000211210112122
4133001003020232310233
5234410132104004411
64311055425023155
7306663553162256
oct37010310566457
97482530753478
102131430141231
11751a30826216
122a5103784abb
13125cba80ba01
1475239c7579d
153a69b68b9db
hex1f04322ed2f

2131430141231 has 16 divisors (see below), whose sum is σ = 2291473704960. Its totient is φ = 1976177630880.

The previous prime is 2131430141209. The next prime is 2131430141237. The reversal of 2131430141231 is 1321410341312.

It is a cyclic number.

It is not a de Polignac number, because 2131430141231 - 210 = 2131430140207 is a prime.

It is a super-2 number, since 2×21314301412312 (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2131430141231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131430141237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19275641 + ... + 19385901.

It is an arithmetic number, because the mean of its divisors is an integer number (143217106560).

Almost surely, 22131430141231 is an apocalyptic number.

2131430141231 is a deficient number, since it is larger than the sum of its proper divisors (160043563729).

2131430141231 is a wasteful number, since it uses less digits than its factorization.

2131430141231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131974.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 2131430141231 its reverse (1321410341312), we get a palindrome (3452840482543).

The spelling of 2131430141231 in words is "two trillion, one hundred thirty-one billion, four hundred thirty million, one hundred forty-one thousand, two hundred thirty-one".

Divisors: 1 19 47 893 21647 110261 411293 1017409 2094959 5182267 19330771 98463073 2386819867 45349577473 112180533749 2131430141231