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123311213330 = 25307331121349
BaseRepresentation
bin111001011010111101…
…0111100101100010010
3102210021202210200021012
41302311322330230102
54010020132311310
6132352015130522
711623524006404
oct1626572745422
9383252720235
10123311213330
1148328a68768
121ba94813a42
13b8221c45b6
145d7b000b74
15331aa20c05
hex1cb5ebcb12

123311213330 has 32 divisors (see below), whose sum is σ = 223357780800. Its totient is φ = 49014884160.

The previous prime is 123311213299. The next prime is 123311213341. The reversal of 123311213330 is 33312113321.

It is a junction number, because it is equal to n+sod(n) for n = 123311213296 and 123311213305.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 955496 + ... + 1076844.

It is an arithmetic number, because the mean of its divisors is an integer number (6979930650).

Almost surely, 2123311213330 is an apocalyptic number.

123311213330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123311213330 is a deficient number, since it is larger than the sum of its proper divisors (100046567470).

123311213330 is a wasteful number, since it uses less digits than its factorization.

123311213330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121994.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 123311213330 its reverse (33312113321), we get a palindrome (156623326651).

The spelling of 123311213330 in words is "one hundred twenty-three billion, three hundred eleven million, two hundred thirteen thousand, three hundred thirty".

Divisors: 1 2 5 10 307 331 614 662 1535 1655 3070 3310 101617 121349 203234 242698 508085 606745 1016170 1213490 37254143 40166519 74508286 80333038 186270715 200832595 372541430 401665190 12331121333 24662242666 61655606665 123311213330