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231141044040401 = 1121012822185491
BaseRepresentation
bin110100100011100010110111…
…110100101011001011010001
31010022101212102202222212110202
4310203202313310223023101
5220244003324233243101
62135332421342304545
766454250355226655
oct6443426764531321
91108355382885422
10231141044040401
1167715403587440
1221b10823b88155
139bc8678945721
144111401578a65
151bac797cd136b
hexd238b7d2b2d1

231141044040401 has 4 divisors (see below), whose sum is σ = 252153866225904. Its totient is φ = 210128221854900.

The previous prime is 231141044040329. The next prime is 231141044040427. The reversal of 231141044040401 is 104040440141132.

It is a happy number.

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 231141044040401 - 230 = 231139970298577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231141044040461) 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, 10506411092735 + ... + 10506411092756.

It is an arithmetic number, because the mean of its divisors is an integer number (63038466556476).

Almost surely, 2231141044040401 is an apocalyptic number.

It is an amenable number.

231141044040401 is a deficient number, since it is larger than the sum of its proper divisors (21012822185503).

231141044040401 is a wasteful number, since it uses less digits than its factorization.

231141044040401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21012822185502.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 231141044040401 its reverse (104040440141132), we get a palindrome (335181484181533).

The spelling of 231141044040401 in words is "two hundred thirty-one trillion, one hundred forty-one billion, forty-four million, forty thousand, four hundred one".

Divisors: 1 11 21012822185491 231141044040401