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231012133022 = 2112954595591
BaseRepresentation
bin1101011100100101100…
…1010110100010011110
3211002021122002021100202
43113021121112202132
512241103101224042
6254043035423502
722455460505666
oct3271131264236
9732248067322
10231012133022
1189a76365800
12389315b4b92
1318a272abb48
14b276b151a6
156020d79632
hex35c965689e

231012133022 has 12 divisors (see below), whose sum is σ = 380883641208. Its totient is φ = 105005514900.

The previous prime is 231012133019. The next prime is 231012133039. The reversal of 231012133022 is 220331210132.

It is a junction number, because it is equal to n+sod(n) for n = 231012132985 and 231012133003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 477297554 + ... + 477298037.

It is an arithmetic number, because the mean of its divisors is an integer number (31740303434).

Almost surely, 2231012133022 is an apocalyptic number.

231012133022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231012133022 is a deficient number, since it is larger than the sum of its proper divisors (149871508186).

231012133022 is a wasteful number, since it uses less digits than its factorization.

231012133022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954595615 (or 954595604 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 231012133022 its reverse (220331210132), we get a palindrome (451343343154).

The spelling of 231012133022 in words is "two hundred thirty-one billion, twelve million, one hundred thirty-three thousand, twenty-two".

Divisors: 1 2 11 22 121 242 954595591 1909191182 10500551501 21001103002 115506066511 231012133022