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13120100131220 = 2252328521956807
BaseRepresentation
bin1011111011101100001011…
…1010000110000110010100
31201110021021100002022222122
42332323002322012012110
53204424431113144340
643523142451115112
72522616212023505
oct276730272060624
951407240068878
1013120100131220
1141a9226535995
12157a91aba2a98
137422b2830c14
14335032794bac
1517b43d31adb5
hexbeec2e86194

13120100131220 has 24 divisors (see below), whose sum is σ = 28750132462464. Its totient is φ = 5019864397856.

The previous prime is 13120100131213. The next prime is 13120100131309. The reversal of 13120100131220 is 2213100102131.

13120100131220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×131201001312202 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 14260977944 + ... + 14260978863.

It is an arithmetic number, because the mean of its divisors is an integer number (1197922185936).

Almost surely, 213120100131220 is an apocalyptic number.

13120100131220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13120100131220 is an abundant number, since it is smaller than the sum of its proper divisors (15630032331244).

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

13120100131220 is a wasteful number, since it uses less digits than its factorization.

13120100131220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28521956839 (or 28521956837 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 13120100131220 its reverse (2213100102131), we get a palindrome (15333200233351).

The spelling of 13120100131220 in words is "thirteen trillion, one hundred twenty billion, one hundred million, one hundred thirty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 23 46 92 115 230 460 28521956807 57043913614 114087827228 142609784035 285219568070 570439136140 656005006561 1312010013122 2624020026244 3280025032805 6560050065610 13120100131220