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21302302211131 = 166572215757719
BaseRepresentation
bin1001101011111110101000…
…01001111111110000111011
32210102110222001211101211211
410311333110021333300323
510243004103331224011
6113150050442103551
74326016623124144
oct465772411776073
983373861741754
1021302302211131
11687328a280557
122480641aaabb7
13bb6a4c348886
1453907348cacb
1526e1c5e67b21
hex135fd427fc3b

21302302211131 has 8 divisors (see below), whose sum is σ = 21304911682080. Its totient is φ = 21299692933248.

The previous prime is 21302302211117. The next prime is 21302302211173. The reversal of 21302302211131 is 13111220320312.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-21302302211131 is a prime.

It is a super-2 number, since 2×213023022111312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21302302011131) 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, 369040290 + ... + 369098008.

It is an arithmetic number, because the mean of its divisors is an integer number (2663113960260).

Almost surely, 221302302211131 is an apocalyptic number.

21302302211131 is a deficient number, since it is larger than the sum of its proper divisors (2609470949).

21302302211131 is a wasteful number, since it uses less digits than its factorization.

21302302211131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96533.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 21302302211131 its reverse (13111220320312), we get a palindrome (34413522531443).

The spelling of 21302302211131 in words is "twenty-one trillion, three hundred two billion, three hundred two million, two hundred eleven thousand, one hundred thirty-one".

Divisors: 1 16657 22157 57719 369069149 961425383 1278879883 21302302211131