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13131120404423 = 717110345549617
BaseRepresentation
bin1011111100010101001111…
…0001000110011111000111
31201111022201100200012211102
42333011103301012133013
53210120013310420143
643532204201530315
72523456255554060
oct277052361063707
951438640605742
1013131120404423
11420297116029a
121580a957a399b
1374334aa06138
1433579a221567
1517b885a620b8
hexbf153c467c7

13131120404423 has 8 divisors (see below), whose sum is σ = 15889759144992. Its totient is φ = 10593172763136.

The previous prime is 13131120404411. The next prime is 13131120404429. The reversal of 13131120404423 is 32440402113131.

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

It is a cyclic number.

It is not a de Polignac number, because 13131120404423 - 226 = 13131053295559 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 (13131120404429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55172774690 + ... + 55172774927.

It is an arithmetic number, because the mean of its divisors is an integer number (1986219893124).

Almost surely, 213131120404423 is an apocalyptic number.

13131120404423 is a deficient number, since it is larger than the sum of its proper divisors (2758638740569).

13131120404423 is a wasteful number, since it uses less digits than its factorization.

13131120404423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110345549641.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 13131120404423 its reverse (32440402113131), we get a palindrome (45571522517554).

The spelling of 13131120404423 in words is "thirteen trillion, one hundred thirty-one billion, one hundred twenty million, four hundred four thousand, four hundred twenty-three".

Divisors: 1 7 17 119 110345549617 772418847319 1875874343489 13131120404423