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231022212323 = 726373739799
BaseRepresentation
bin1101011100100111111…
…1110011010011100011
3211002022100001100120012
43113021333303103203
512241113141243243
6254044035435135
722455642255500
oct3271177632343
9732270040505
10231022212323
1189a8101a501
1238934a55aab
1318a293ca826
14b2781ba4a7
156021bbad18
hex35c9ff34e3

231022212323 has 12 divisors (see below), whose sum is σ = 268782656400. Its totient is φ = 197987699952.

The previous prime is 231022212259. The next prime is 231022212373. The reversal of 231022212323 is 323212220132.

It is not a de Polignac number, because 231022212323 - 26 = 231022212259 is a prime.

It is a super-2 number, since 2×2310222123232 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231022212373) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57623 + ... + 682176.

It is an arithmetic number, because the mean of its divisors is an integer number (22398554700).

Almost surely, 2231022212323 is an apocalyptic number.

231022212323 is a deficient number, since it is larger than the sum of its proper divisors (37760444077).

231022212323 is an equidigital number, since it uses as much as digits as its factorization.

231022212323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 746186 (or 746179 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 231022212323 its reverse (323212220132), we get a palindrome (554234432455).

The spelling of 231022212323 in words is "two hundred thirty-one billion, twenty-two million, two hundred twelve thousand, three hundred twenty-three".

Divisors: 1 7 49 6373 44611 312277 739799 5178593 36250151 4714739027 33003173189 231022212323