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1200233021131 = 23127740864561
BaseRepresentation
bin10001011101110011011…
…101100111111011001011
311020202000022011210212201
4101131303131213323023
5124131034123134011
62315213543021031
7152466615230644
oct21356335477313
94222008153781
101200233021131
1142301a283341
1217474373a777
1389248964131
144213d4646cb
152134a3b8cc1
hex11773767ecb

1200233021131 has 8 divisors (see below), whose sum is σ = 1253397845664. Its totient is φ = 1147149928320.

The previous prime is 1200233021107. The next prime is 1200233021149. The reversal of 1200233021131 is 1311203320021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1200233021131 - 221 = 1200230923979 is a prime.

It is a super-4 number, since 4×12002330211314 (a number of 49 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200233021099 and 1200233021108.

It is not an unprimeable number, because it can be changed into a prime (1200233021231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20402910 + ... + 20461651.

It is an arithmetic number, because the mean of its divisors is an integer number (156674730708).

Almost surely, 21200233021131 is an apocalyptic number.

1200233021131 is a deficient number, since it is larger than the sum of its proper divisors (53164824533).

1200233021131 is a wasteful number, since it uses less digits than its factorization.

1200233021131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40865861.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1200233021131 its reverse (1311203320021), we get a palindrome (2511436341152).

The spelling of 1200233021131 in words is "one trillion, two hundred billion, two hundred thirty-three million, twenty-one thousand, one hundred thirty-one".

Divisors: 1 23 1277 29371 40864561 939884903 52184044397 1200233021131