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2122131023 = 21173313721
BaseRepresentation
bin111111001111101…
…0010011001001111
312110220011102111022
41332133102121033
513321231143043
6550324344355
7103405546625
oct17637223117
95426142438
102122131023
119999844a1
124b28450bb
1327a86923c
14161bab515
15c6489868
hex7e7d264f

2122131023 has 8 divisors (see below), whose sum is σ = 2135252976. Its totient is φ = 2109038400.

The previous prime is 2122131019. The next prime is 2122131079. The reversal of 2122131023 is 3201312212.

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 2122131023 - 22 = 2122131019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2122130992 and 2122131010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122131523) 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, 147803 + ... + 161523.

It is an arithmetic number, because the mean of its divisors is an integer number (266906622).

Almost surely, 22122131023 is an apocalyptic number.

2122131023 is a deficient number, since it is larger than the sum of its proper divisors (13121953).

2122131023 is a wasteful number, since it uses less digits than its factorization.

2122131023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14665.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2122131023 is about 46066.5933513647. The cubic root of 2122131023 is about 1285.0619506134.

Adding to 2122131023 its reverse (3201312212), we get a palindrome (5323443235).

The spelling of 2122131023 in words is "two billion, one hundred twenty-two million, one hundred thirty-one thousand, twenty-three".

Divisors: 1 211 733 13721 154663 2895131 10057493 2122131023