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123012211041445 = 5116467934579781
BaseRepresentation
bin11011111110000100000011…
…001001000110010010100101
3121010112212000111021111011211
4123332010003021012102211
5112110413002011311240
61113343010221231421
734624224156450205
oct3376040311062245
9533485014244154
10123012211041445
1136217205236080
1211968710702571
135384003a4328b
142253b739dc405
15e34c6ae05bea
hex6fe1032464a5

123012211041445 has 16 divisors (see below), whose sum is σ = 161036661582720. Its totient is φ = 89462040433600.

The previous prime is 123012211041329. The next prime is 123012211041493. The reversal of 123012211041445 is 544140112210321.

It is not a de Polignac number, because 123012211041445 - 29 = 123012211040933 is a prime.

It is a congruent number.

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, 13732546 + ... + 20847235.

It is an arithmetic number, because the mean of its divisors is an integer number (10064791348920).

Almost surely, 2123012211041445 is an apocalyptic number.

It is an amenable number.

123012211041445 is a deficient number, since it is larger than the sum of its proper divisors (38024450541275).

123012211041445 is a wasteful number, since it uses less digits than its factorization.

123012211041445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34644476.

The product of its (nonzero) digits is 7680, while the sum is 31.

Adding to 123012211041445 its reverse (544140112210321), we get a palindrome (667152323251766).

The spelling of 123012211041445 in words is "one hundred twenty-three trillion, twelve billion, two hundred eleven million, forty-one thousand, four hundred forty-five".

Divisors: 1 5 11 55 64679 323395 711469 3557345 34579781 172898905 380377591 1901887955 2236585655299 11182928276495 24602442208289 123012211041445