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112130013131 = 280693994799
BaseRepresentation
bin110100001101101111…
…0000011011111001011
3101201102112101212002022
41220123132003133023
53314120240410011
6123302315155055
711046454246163
oct1503336033713
9351375355068
10112130013131
1143610518544
1219894145a8b
13a75c8959c6
1455da0435a3
152db40dc8db
hex1a1b7837cb

112130013131 has 4 divisors (see below), whose sum is σ = 112134036000. Its totient is φ = 112125990264.

The previous prime is 112130013109. The next prime is 112130013143. The reversal of 112130013131 is 131310031211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-112130013131 is a prime.

It is a super-2 number, since 2×1121300131312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112130013181) 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, 1969331 + ... + 2025468.

It is an arithmetic number, because the mean of its divisors is an integer number (28033509000).

Almost surely, 2112130013131 is an apocalyptic number.

112130013131 is a deficient number, since it is larger than the sum of its proper divisors (4022869).

112130013131 is an equidigital number, since it uses as much as digits as its factorization.

112130013131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4022868.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 112130013131 its reverse (131310031211), we get a palindrome (243440044342).

The spelling of 112130013131 in words is "one hundred twelve billion, one hundred thirty million, thirteen thousand, one hundred thirty-one".

Divisors: 1 28069 3994799 112130013131