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12412121013 = 321972585503
BaseRepresentation
bin10111000111101000…
…11110111110110101
31012001000121002002200
423203310132332311
5200410000333023
65411350455113
7616404200505
oct134364367665
935030532080
1012412121013
11529a356256
1224a4964499
13122a65b206
1485a659a05
154c9a2a743
hex2e3d1efb5

12412121013 has 12 divisors (see below), whose sum is σ = 18872231040. Its totient is φ = 7839234216.

The previous prime is 12412120999. The next prime is 12412121021. The reversal of 12412121013 is 31012121421.

It is not a de Polignac number, because 12412121013 - 26 = 12412120949 is a prime.

It is a super-2 number, since 2×124121210132 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12412121063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36292581 + ... + 36292922.

It is an arithmetic number, because the mean of its divisors is an integer number (1572685920).

Almost surely, 212412121013 is an apocalyptic number.

It is an amenable number.

12412121013 is a deficient number, since it is larger than the sum of its proper divisors (6460110027).

12412121013 is a wasteful number, since it uses less digits than its factorization.

12412121013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72585528 (or 72585525 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12412121013 its reverse (31012121421), we get a palindrome (43424242434).

The spelling of 12412121013 in words is "twelve billion, four hundred twelve million, one hundred twenty-one thousand, thirteen".

Divisors: 1 3 9 19 57 171 72585503 217756509 653269527 1379124557 4137373671 12412121013