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2131013423 = 71127675499
BaseRepresentation
bin111111100000100…
…1010111100101111
312111111212200212002
41333001022330233
513331014412143
6551243002515
7103544213060
oct17701127457
95444780762
102131013423
119a39a0a20
124b580943b
1327c6591b6
14163040567
15c71415b8
hex7f04af2f

2131013423 has 8 divisors (see below), whose sum is σ = 2656848000. Its totient is φ = 1660529880.

The previous prime is 2131013413. The next prime is 2131013431. The reversal of 2131013423 is 3243101312.

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 2131013423 - 218 = 2130751279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2131013395 and 2131013404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131013413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13837673 + ... + 13837826.

It is an arithmetic number, because the mean of its divisors is an integer number (332106000).

Almost surely, 22131013423 is an apocalyptic number.

2131013423 is a deficient number, since it is larger than the sum of its proper divisors (525834577).

2131013423 is a wasteful number, since it uses less digits than its factorization.

2131013423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27675517.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2131013423 is about 46162.9009378743. The cubic root of 2131013423 is about 1286.8523750565.

Adding to 2131013423 its reverse (3243101312), we get a palindrome (5374114735).

The spelling of 2131013423 in words is "two billion, one hundred thirty-one million, thirteen thousand, four hundred twenty-three".

Divisors: 1 7 11 77 27675499 193728493 304430489 2131013423