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2312023121 = 31129757503
BaseRepresentation
bin1000100111001110…
…1010110001010001
312222010110221110222
42021303222301101
514213334214441
61021230402425
7111202605122
oct21163526121
95863427428
102312023121
11a87093211
12546360415
132aacc4825
1417d0bc049
15d7e98d4b
hex89ceac51

2312023121 has 8 divisors (see below), whose sum is σ = 2388486144. Its totient is φ = 2235677760.

The previous prime is 2312023117. The next prime is 2312023139. The reversal of 2312023121 is 1213202132.

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 2312023121 - 22 = 2312023117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2312023121.

It is not an unprimeable number, because it can be changed into a prime (2312043121) 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, 11456 + ... + 68958.

It is an arithmetic number, because the mean of its divisors is an integer number (298560768).

Almost surely, 22312023121 is an apocalyptic number.

It is an amenable number.

2312023121 is a deficient number, since it is larger than the sum of its proper divisors (76463023).

2312023121 is a wasteful number, since it uses less digits than its factorization.

2312023121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58831.

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

The square root of 2312023121 is about 48083.5015467884. The cubic root of 2312023121 is about 1322.3022115269.

Adding to 2312023121 its reverse (1213202132), we get a palindrome (3525225253).

The spelling of 2312023121 in words is "two billion, three hundred twelve million, twenty-three thousand, one hundred twenty-one".

Divisors: 1 31 1297 40207 57503 1782593 74581391 2312023121