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11317630123 = 53213540191
BaseRepresentation
bin10101000101001010…
…10101010010101011
31002012202010011212001
422202211111102223
5141134303130443
65111012031431
7550314161122
oct124245252253
932182104761
1011317630123
114888564028
12223a302577
1310b4988c77
14795152ab9
154638d1d4d
hex2a29554ab

11317630123 has 4 divisors (see below), whose sum is σ = 11531170368. Its totient is φ = 11104089880.

The previous prime is 11317630109. The next prime is 11317630141. The reversal of 11317630123 is 32103671311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32103671311 = 211152150101.

It is a cyclic number.

It is not a de Polignac number, because 11317630123 - 25 = 11317630091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11317630091 and 11317630100.

It is not an unprimeable number, because it can be changed into a prime (11317630153) 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, 106770043 + ... + 106770148.

It is an arithmetic number, because the mean of its divisors is an integer number (2882792592).

Almost surely, 211317630123 is an apocalyptic number.

11317630123 is a deficient number, since it is larger than the sum of its proper divisors (213540245).

11317630123 is an equidigital number, since it uses as much as digits as its factorization.

11317630123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213540244.

The product of its (nonzero) digits is 2268, while the sum is 28.

The spelling of 11317630123 in words is "eleven billion, three hundred seventeen million, six hundred thirty thousand, one hundred twenty-three".

Divisors: 1 53 213540191 11317630123