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2313011231 = 20773111347
BaseRepresentation
bin1000100111011101…
…1100000000011111
312222012100010220122
42021313130000133
514214112324411
61021303505155
7111214161656
oct21167340037
95865303818
102313011231
11a876a8633
125467581bb
132ab27c4cb
1417d29819d
15d80e19db
hex89ddc01f

2313011231 has 4 divisors (see below), whose sum is σ = 2313143352. Its totient is φ = 2312879112.

The previous prime is 2313011219. The next prime is 2313011243. The reversal of 2313011231 is 1321103132.

2313011231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an interprime number because it is at equal distance from previous prime (2313011219) and next prime (2313011243).

It is a cyclic number.

It is not a de Polignac number, because 2313011231 - 26 = 2313011167 is a prime.

It is a super-2 number, since 2×23130112312 = 10700041909464270722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2313011251) 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, 34901 + ... + 76446.

It is an arithmetic number, because the mean of its divisors is an integer number (578285838).

Almost surely, 22313011231 is an apocalyptic number.

2313011231 is a deficient number, since it is larger than the sum of its proper divisors (132121).

2313011231 is a wasteful number, since it uses less digits than its factorization.

2313011231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132120.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2313011231 is about 48093.7753872578. The cubic root of 2313011231 is about 1322.4905594051.

Adding to 2313011231 its reverse (1321103132), we get a palindrome (3634114363).

The spelling of 2313011231 in words is "two billion, three hundred thirteen million, eleven thousand, two hundred thirty-one".

Divisors: 1 20773 111347 2313011231