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22131032113 = 79280139647
BaseRepresentation
bin10100100111000111…
…001100000000110001
32010010100102220202001
4110213013030000301
5330311021011423
614100012454001
71412266445341
oct244707140061
963110386661
1022131032113
119427432a93
12435777a301
13211903c498
1410dd32cd21
15897db2cad
hex5271cc031

22131032113 has 4 divisors (see below), whose sum is σ = 22411171840. Its totient is φ = 21850892388.

The previous prime is 22131032107. The next prime is 22131032117. The reversal of 22131032113 is 31123013122.

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 22131032113 - 217 = 22130901041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22131032117) 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, 140069745 + ... + 140069902.

It is an arithmetic number, because the mean of its divisors is an integer number (5602792960).

Almost surely, 222131032113 is an apocalyptic number.

It is an amenable number.

22131032113 is a deficient number, since it is larger than the sum of its proper divisors (280139727).

22131032113 is an equidigital number, since it uses as much as digits as its factorization.

22131032113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280139726.

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

Adding to 22131032113 its reverse (31123013122), we get a palindrome (53254045235).

The spelling of 22131032113 in words is "twenty-two billion, one hundred thirty-one million, thirty-two thousand, one hundred thirteen".

Divisors: 1 79 280139647 22131032113