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12031013012120 = 235395697601287
BaseRepresentation
bin1010111100010011000001…
…0000011100001010011000
31120121011010222112100112222
42233010300100130022120
53034104003312341440
641330545430323212
72351132501165324
oct257046020341230
946534128470488
1012031013012120
113919362219933
121423835ab9508
1369369a8c972b
142d84387a0984
1515ce4a94b2b5
hexaf13041c298

12031013012120 has 32 divisors (see below), whose sum is σ = 27070466954400. Its totient is φ = 4812282951168.

The previous prime is 12031013012113. The next prime is 12031013012143. The reversal of 12031013012120 is 2121031013021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2217884 + ... + 5383403.

It is an arithmetic number, because the mean of its divisors is an integer number (845952092325).

Almost surely, 212031013012120 is an apocalyptic number.

12031013012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12031013012120 is an abundant number, since it is smaller than the sum of its proper divisors (15039453942280).

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

12031013012120 is a wasteful number, since it uses less digits than its factorization.

12031013012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7640867 (or 7640863 counting only the distinct ones).

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

Adding to 12031013012120 its reverse (2121031013021), we get a palindrome (14152044025141).

The spelling of 12031013012120 in words is "twelve trillion, thirty-one billion, thirteen million, twelve thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 39569 79138 158276 197845 316552 395690 791380 1582760 7601287 15202574 30405148 38006435 60810296 76012870 152025740 304051480 300775325303 601550650606 1203101301212 1503876626515 2406202602424 3007753253030 6015506506060 12031013012120