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13023121023012 = 2237178915117359
BaseRepresentation
bin1011110110000010111010…
…0000001010000000100100
31201002222221200210012020010
42331200232200022000210
53201332322440214022
643410423400210220
72512614036142632
oct275405640120044
951088850705203
1013023121023012
11417109033a581
121563b74a69970
137360c8b3c019
14330472a18352
15178b6440050c
hexbd82e80a024

13023121023012 has 24 divisors (see below), whose sum is σ = 30387707683200. Its totient is φ = 4340979584416.

The previous prime is 13023121023001. The next prime is 13023121023067. The reversal of 13023121023012 is 21032012132031.

It is a self number, because there is not a number n which added to its sum of digits gives 13023121023012.

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, 6697212 + ... + 8420147.

It is an arithmetic number, because the mean of its divisors is an integer number (1266154486800).

Almost surely, 213023121023012 is an apocalyptic number.

13023121023012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13023121023012 is an abundant number, since it is smaller than the sum of its proper divisors (17364586660188).

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

13023121023012 is a wasteful number, since it uses less digits than its factorization.

13023121023012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15189155 (or 15189153 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 13023121023012 its reverse (21032012132031), we get a palindrome (34055133155043).

The spelling of 13023121023012 in words is "thirteen trillion, twenty-three billion, one hundred twenty-one million, twenty-three thousand, twelve".

Divisors: 1 2 3 4 6 12 71789 143578 215367 287156 430734 861468 15117359 30234718 45352077 60469436 90704154 181408308 1085260085251 2170520170502 3255780255753 4341040341004 6511560511506 13023121023012