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123112032132 = 22362111651801
BaseRepresentation
bin111001010101000001…
…1001000011110000100
3102202202220000020000210
41302222003020132010
54004113140012012
6132320142035420
711615555002245
oct1625203103604
9382686006023
10123112032132
1148236594a01
121ba39b78b70
13b7bcb65bbb
145d5c792ccc
1533082c923c
hex1caa0c8784

123112032132 has 24 divisors (see below), whose sum is σ = 287307832672. Its totient is φ = 41030712000.

The previous prime is 123112032107. The next prime is 123112032151. The reversal of 123112032132 is 231230211321.

It is a super-4 number, since 4×1231120321324 (a number of 45 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123112032099 and 123112032108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 751369 + ... + 900432.

Almost surely, 2123112032132 is an apocalyptic number.

123112032132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123112032132 is an abundant number, since it is smaller than the sum of its proper divisors (164195800540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123112032132 is a wasteful number, since it uses less digits than its factorization.

123112032132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658019 (or 1658017 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 123112032132 its reverse (231230211321), we get a palindrome (354342243453).

The spelling of 123112032132 in words is "one hundred twenty-three billion, one hundred twelve million, thirty-two thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 6211 12422 18633 24844 37266 74532 1651801 3303602 4955403 6607204 9910806 19821612 10259336011 20518672022 30778008033 41037344044 61556016066 123112032132