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231103212323011 = 71914767117669001
BaseRepresentation
bin110100100010111111101000…
…111000001000000011000011
31010022021020210012221111112121
4310202333220320020003003
5220242343334323314021
62135303203341305111
766451441020024550
oct6442775070100303
91108236705844477
10231103212323011
116770035a5651a6
1221b05426265197
139bc4c29b6ac32
14410d652d4da27
151bab7d184d741
hexd22fe8e080c3

231103212323011 has 16 divisors (see below), whose sum is σ = 278037731445760. Its totient is φ = 187650049032000.

The previous prime is 231103212322987. The next prime is 231103212323041. The reversal of 231103212323011 is 110323212301132.

It is a cyclic number.

It is not a de Polignac number, because 231103212323011 - 211 = 231103212320963 is a prime.

It is a super-2 number, since 2×2311032123230112 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231103212323041) 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, 56870490 + ... + 60798511.

It is an arithmetic number, because the mean of its divisors is an integer number (17377358215360).

Almost surely, 2231103212323011 is an apocalyptic number.

231103212323011 is a deficient number, since it is larger than the sum of its proper divisors (46934519122749).

231103212323011 is a wasteful number, since it uses less digits than its factorization.

231103212323011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117683794.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 231103212323011 its reverse (110323212301132), we get a palindrome (341426424624143).

The spelling of 231103212323011 in words is "two hundred thirty-one trillion, one hundred three billion, two hundred twelve million, three hundred twenty-three thousand, eleven".

Divisors: 1 7 19 133 14767 103369 280573 1964011 117669001 823683007 2235711019 15649977133 1737618137767 12163326964369 33014744617573 231103212323011