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12020131212113 = 177924673627973
BaseRepresentation
bin1010111011101010011110…
…1001101010101101010001
31120120010001121111122020002
42232322213221222231101
53033414212042241423
641321545543455345
72350266025336013
oct256724751525521
946503047448202
1012020131212113
113914788783492
1214216b9757555
1369265531890b
142d7ac549c1b3
1515ca10459228
hexaeea7a6ab51

12020131212113 has 16 divisors (see below), whose sum is σ = 12893529358080. Its totient is φ = 11165330532096.

The previous prime is 12020131212049. The next prime is 12020131212119. The reversal of 12020131212113 is 31121213102021.

It is a cyclic number.

It is not a de Polignac number, because 12020131212113 - 26 = 12020131212049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12020131212119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1499195 + ... + 5127167.

It is an arithmetic number, because the mean of its divisors is an integer number (805845584880).

Almost surely, 212020131212113 is an apocalyptic number.

It is an amenable number.

12020131212113 is a deficient number, since it is larger than the sum of its proper divisors (873398145967).

12020131212113 is a wasteful number, since it uses less digits than its factorization.

12020131212113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3630536.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 12020131212113 its reverse (31121213102021), we get a palindrome (43141344314134).

The spelling of 12020131212113 in words is "twelve trillion, twenty billion, one hundred thirty-one million, two hundred twelve thousand, one hundred thirteen".

Divisors: 1 17 79 1343 2467 41939 194893 3313181 3627973 61675541 286609867 4872367739 8950209391 152153559647 707066541889 12020131212113