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123031123132 = 22101605350311
BaseRepresentation
bin111001010010100111…
…0011111010010111100
3102202120020202121202011
41302211032133102330
54003431431420012
6132304131541004
711613553202041
oct1624516372274
9382506677664
10123031123132
11481a4952865
121ba16a5a764
13b7a9177b58
145d51b311c8
1533011461a7
hex1ca539f4bc

123031123132 has 24 divisors (see below), whose sum is σ = 217476437472. Its totient is φ = 60895224000.

The previous prime is 123031123121. The next prime is 123031123157. The reversal of 123031123132 is 231321130321.

It is a congruent number.

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, 2420257 + ... + 2470567.

It is an arithmetic number, because the mean of its divisors is an integer number (9061518228).

Almost surely, 2123031123132 is an apocalyptic number.

It is an amenable number.

123031123132 is a deficient number, since it is larger than the sum of its proper divisors (94445314340).

123031123132 is a wasteful number, since it uses less digits than its factorization.

123031123132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56469 (or 56467 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 123031123132 its reverse (231321130321), we get a palindrome (354352253453).

The spelling of 123031123132 in words is "one hundred twenty-three billion, thirty-one million, one hundred twenty-three thousand, one hundred thirty-two".

Divisors: 1 2 4 101 202 404 6053 12106 24212 50311 100622 201244 611353 1222706 2445412 5081411 10162822 20325644 304532483 609064966 1218129932 30757780783 61515561566 123031123132