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113331031213 = 418340518221
BaseRepresentation
bin110100110001100001…
…1100100110010101101
3101211112020022220011111
41221203003210302231
53324100220444323
6124021421152021
711121306604501
oct1514303446255
9354466286144
10113331031213
114407745a174
1219b6a3bb611
13a8c16556aa
1456b175a301
152e34779c0d
hex1a630e4cad

113331031213 has 16 divisors (see below), whose sum is σ = 117537239232. Its totient is φ = 109194480000.

The previous prime is 113331031207. The next prime is 113331031241. The reversal of 113331031213 is 312130133311.

It is not a de Polignac number, because 113331031213 - 25 = 113331031181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113331031273) 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, 13781443 + ... + 13789663.

It is an arithmetic number, because the mean of its divisors is an integer number (7346077452).

Almost surely, 2113331031213 is an apocalyptic number.

It is an amenable number.

113331031213 is a deficient number, since it is larger than the sum of its proper divisors (4206208019).

113331031213 is an equidigital number, since it uses as much as digits as its factorization.

113331031213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12396.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 113331031213 its reverse (312130133311), we get a palindrome (425461164524).

The spelling of 113331031213 in words is "one hundred thirteen billion, three hundred thirty-one million, thirty-one thousand, two hundred thirteen".

Divisors: 1 41 83 3403 4051 8221 166091 336233 337061 682343 13785553 27976063 33303271 1365434111 2764171493 113331031213