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123430111100 = 22524328704677
BaseRepresentation
bin111001011110100000…
…0100000011101111100
3102210121001112022100022
41302331000200131330
54010241102023400
6132411503351312
711626466430212
oct1627500403574
9383531468308
10123430111100
114838a09738a
121bb085b2538
13b840a238ca
145d8cb10cb2
1533261a9b85
hex1cbd02077c

123430111100 has 36 divisors (see below), whose sum is σ = 274072265544. Its totient is φ = 48223855680.

The previous prime is 123430111093. The next prime is 123430111111. The reversal of 123430111100 is 1111034321.

123430111100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14348039 + ... + 14356638.

Almost surely, 2123430111100 is an apocalyptic number.

123430111100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123430111100 is an abundant number, since it is smaller than the sum of its proper divisors (150642154444).

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

123430111100 is a wasteful number, since it uses less digits than its factorization.

123430111100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28704734 (or 28704727 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 123430111100 its reverse (1111034321), we get a palindrome (124541145421).

The spelling of 123430111100 in words is "one hundred twenty-three billion, four hundred thirty million, one hundred eleven thousand, one hundred".

Divisors: 1 2 4 5 10 20 25 43 50 86 100 172 215 430 860 1075 2150 4300 28704677 57409354 114818708 143523385 287046770 574093540 717616925 1234301111 1435233850 2468602222 2870467700 4937204444 6171505555 12343011110 24686022220 30857527775 61715055550 123430111100