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123130023230 = 2529424586287
BaseRepresentation
bin111001010101100011…
…1110000110100111110
3102202211010212021011202
41302223013300310332
54004132241220410
6132322023415502
711616163633364
oct1625307606476
9382733767152
10123130023230
1148245762985
121ba43bb4592
13b7c37c4b16
145d60d17634
153309b7eca5
hex1cab1f0d3e

123130023230 has 16 divisors (see below), whose sum is σ = 229276595520. Its totient is φ = 47553664032.

The previous prime is 123130023229. The next prime is 123130023281. The reversal of 123130023230 is 32320031321.

It is a super-2 number, since 2×1231300232302 (a number of 23 digits) contains 22 as substring.

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, 212292854 + ... + 212293433.

It is an arithmetic number, because the mean of its divisors is an integer number (14329787220).

Almost surely, 2123130023230 is an apocalyptic number.

123130023230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123130023230 is a deficient number, since it is larger than the sum of its proper divisors (106146572290).

123130023230 is a wasteful number, since it uses less digits than its factorization.

123130023230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424586323.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 123130023230 its reverse (32320031321), we get a palindrome (155450054551).

The spelling of 123130023230 in words is "one hundred twenty-three billion, one hundred thirty million, twenty-three thousand, two hundred thirty".

Divisors: 1 2 5 10 29 58 145 290 424586287 849172574 2122931435 4245862870 12313002323 24626004646 61565011615 123130023230