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123203113313 = 773730932987
BaseRepresentation
bin111001010111101111…
…0100101000101100001
3102210000020101121220212
41302233132211011201
54004304444111223
6132333154143505
711621042120120
oct1625736450541
9383006347825
10123203113313
1148282a44605
121ba64581b95
13b8059a5ca7
145d6a901ab7
1533112bb278
hex1caf7a5161

123203113313 has 16 divisors (see below), whose sum is σ = 142756229760. Its totient is φ = 104138649216.

The previous prime is 123203113291. The next prime is 123203113379. The reversal of 123203113313 is 313311302321.

It is not a de Polignac number, because 123203113313 - 26 = 123203113249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123203113013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3718406 + ... + 3751392.

It is an arithmetic number, because the mean of its divisors is an integer number (8922264360).

Almost surely, 2123203113313 is an apocalyptic number.

It is an amenable number.

123203113313 is a deficient number, since it is larger than the sum of its proper divisors (19553116447).

123203113313 is an equidigital number, since it uses as much as digits as its factorization.

123203113313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40376.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 123203113313 its reverse (313311302321), we get a palindrome (436514415634).

The spelling of 123203113313 in words is "one hundred twenty-three billion, two hundred three million, one hundred thirteen thousand, three hundred thirteen".

Divisors: 1 7 73 511 7309 32987 51163 230909 533557 2408051 3734899 16856357 241101983 1687713881 17600444759 123203113313