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2112203022131 = 8870172381243
BaseRepresentation
bin11110101111001001000…
…111000101111100110011
321110220222001121221120102
4132233021013011330303
5234101242433202011
64254155505103015
7305413234312406
oct36571107057463
97426861557512
102112203022131
117448645a5044
122a1438627a6b
131242452b0367
1474334499d3d
1539e236dc73b
hex1ebc91c5f33

2112203022131 has 4 divisors (see below), whose sum is σ = 2112206290392. Its totient is φ = 2112199753872.

The previous prime is 2112203022091. The next prime is 2112203022133. The reversal of 2112203022131 is 1312203022112.

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 2112203022131 - 210 = 2112203021107 is a prime.

It is a super-2 number, since 2×21122030221312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112203022133) 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, 303605 + ... + 2077638.

It is an arithmetic number, because the mean of its divisors is an integer number (528051572598).

Almost surely, 22112203022131 is an apocalyptic number.

2112203022131 is a deficient number, since it is larger than the sum of its proper divisors (3268261).

2112203022131 is an equidigital number, since it uses as much as digits as its factorization.

2112203022131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3268260.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2112203022131 its reverse (1312203022112), we get a palindrome (3424406044243).

The spelling of 2112203022131 in words is "two trillion, one hundred twelve billion, two hundred three million, twenty-two thousand, one hundred thirty-one".

Divisors: 1 887017 2381243 2112203022131