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2123130323 = 17124890019
BaseRepresentation
bin111111010001100…
…0110010111010011
312110222001012021102
41332203012113103
513322010132243
6550402015015
7103420211216
oct17643062723
95428035242
102123130323
1199a4a7266
124b304746b
1327ab29042
14161d8b77d
15c65d59b8
hex7e8c65d3

2123130323 has 4 divisors (see below), whose sum is σ = 2248020360. Its totient is φ = 1998240288.

The previous prime is 2123130313. The next prime is 2123130329. The reversal of 2123130323 is 3230313212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2123130323 - 24 = 2123130307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2123130295 and 2123130304.

It is not an unprimeable number, because it can be changed into a prime (2123130329) 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, 62444993 + ... + 62445026.

It is an arithmetic number, because the mean of its divisors is an integer number (562005090).

Almost surely, 22123130323 is an apocalyptic number.

2123130323 is a deficient number, since it is larger than the sum of its proper divisors (124890037).

2123130323 is a wasteful number, since it uses less digits than its factorization.

2123130323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124890036.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 2123130323 is about 46077.4383294037. The cubic root of 2123130323 is about 1285.2636285302.

Adding to 2123130323 its reverse (3230313212), we get a palindrome (5353443535).

The spelling of 2123130323 in words is "two billion, one hundred twenty-three million, one hundred thirty thousand, three hundred twenty-three".

Divisors: 1 17 124890019 2123130323