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1200311203201 = 11109119200291
BaseRepresentation
bin10001011101111000000…
…111110111010110000001
311020202012202021212111221
4101131320013313112001
5124131214132000301
62315225414435041
7152501554613005
oct21357007672601
94222182255457
101200311203201
1142305a422720
12174765962a81
138925bc08c06
14421499b6705
15213521adda1
hex117781f7581

1200311203201 has 4 divisors (see below), whose sum is σ = 1309430403504. Its totient is φ = 1091192002900.

The previous prime is 1200311203187. The next prime is 1200311203213. The reversal of 1200311203201 is 1023021130021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1200311203201 - 211 = 1200311201153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1200311203501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54559600135 + ... + 54559600156.

It is an arithmetic number, because the mean of its divisors is an integer number (327357600876).

Almost surely, 21200311203201 is an apocalyptic number.

1200311203201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1200311203201 is a deficient number, since it is larger than the sum of its proper divisors (109119200303).

1200311203201 is a wasteful number, since it uses less digits than its factorization.

1200311203201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109119200302.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1200311203201 its reverse (1023021130021), we get a palindrome (2223332333222).

The spelling of 1200311203201 in words is "one trillion, two hundred billion, three hundred eleven million, two hundred three thousand, two hundred one".

Divisors: 1 11 109119200291 1200311203201