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2120301131 = 13163100087
BaseRepresentation
bin111111001100001…
…0011101001001011
312110202201110100112
41332120103221023
513320244114011
6550221224535
7103354155644
oct17630235113
95422643315
102120301131
11998944693
124b210214b
1327a378370
141618526cb
15c622758b
hex7e613a4b

2120301131 has 4 divisors (see below), whose sum is σ = 2283401232. Its totient is φ = 1957201032.

The previous prime is 2120301119. The next prime is 2120301137. The reversal of 2120301131 is 1311030212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2120301131 - 222 = 2116106827 is a prime.

It is a super-4 number, since 4×21203011314 (a number of 38 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120301137) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 81550031 + ... + 81550056.

It is an arithmetic number, because the mean of its divisors is an integer number (570850308).

Almost surely, 22120301131 is an apocalyptic number.

2120301131 is a deficient number, since it is larger than the sum of its proper divisors (163100101).

2120301131 is a wasteful number, since it uses less digits than its factorization.

2120301131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163100100.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2120301131 is about 46046.7276904668. The cubic root of 2120301131 is about 1284.6924791120.

Adding to 2120301131 its reverse (1311030212), we get a palindrome (3431331343).

The spelling of 2120301131 in words is "two billion, one hundred twenty million, three hundred one thousand, one hundred thirty-one".

Divisors: 1 13 163100087 2120301131