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1312231012132 = 22911360107303
BaseRepresentation
bin10011000110000111000…
…100000011011100100100
311122110002122011020122111
4103012013010003130210
5132444422114342012
62442455224410404
7163543210365025
oct23060704033444
94573078136574
101312231012132
11466572218687
1219239b616a04
1396987083b21
1447725b3cc4c
1524202ac8ba7
hex13187103724

1312231012132 has 12 divisors (see below), whose sum is σ = 2298925028736. Its totient is φ = 655395289640.

The previous prime is 1312231012123. The next prime is 1312231012171. The reversal of 1312231012132 is 2312101322131.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180050008 + ... + 180057295.

It is an arithmetic number, because the mean of its divisors is an integer number (191577085728).

Almost surely, 21312231012132 is an apocalyptic number.

It is an amenable number.

1312231012132 is a deficient number, since it is larger than the sum of its proper divisors (986694016604).

1312231012132 is a wasteful number, since it uses less digits than its factorization.

1312231012132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360108218 (or 360108216 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1312231012132 its reverse (2312101322131), we get a palindrome (3624332334263).

The spelling of 1312231012132 in words is "one trillion, three hundred twelve billion, two hundred thirty-one million, twelve thousand, one hundred thirty-two".

Divisors: 1 2 4 911 1822 3644 360107303 720214606 1440429212 328057753033 656115506066 1312231012132