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113200123031 = 202129560039
BaseRepresentation
bin110100101101101000…
…0001100110010010111
3101211012010000001220022
41221123100030302113
53323313212414111
6124000423255355
711115130112132
oct1513320146227
9354163001808
10113200123031
114400a577996
1219b325aa55b
13a8a04ac728
14569c201219
152e2801c2db
hex1a5b40cc97

113200123031 has 4 divisors (see below), whose sum is σ = 113200885200. Its totient is φ = 113199360864.

The previous prime is 113200123019. The next prime is 113200123081. The reversal of 113200123031 is 130321002311.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 113200123031 - 26 = 113200122967 is a prime.

It is a super-2 number, since 2×1132001230312 (a number of 23 digits) 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 (113200123081) 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, 77891 + ... + 482148.

It is an arithmetic number, because the mean of its divisors is an integer number (28300221300).

Almost surely, 2113200123031 is an apocalyptic number.

113200123031 is a deficient number, since it is larger than the sum of its proper divisors (762169).

113200123031 is an equidigital number, since it uses as much as digits as its factorization.

113200123031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 762168.

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

Adding to 113200123031 its reverse (130321002311), we get a palindrome (243521125342).

The spelling of 113200123031 in words is "one hundred thirteen billion, two hundred million, one hundred twenty-three thousand, thirty-one".

Divisors: 1 202129 560039 113200123031