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20122120113 = 37391881827
BaseRepresentation
bin10010101111010111…
…110010111110110001
31220221100022121112220
4102233113302332301
5312202230320423
613124410511253
71311434125134
oct225727627661
956840277486
1020122120113
118596459737
123a96a35529
131b88a94864
14d8c5d421b
157cb83e9e3
hex4af5f2fb1

20122120113 has 8 divisors (see below), whose sum is σ = 27197021088. Its totient is φ = 13230982944.

The previous prime is 20122120111. The next prime is 20122120121. The reversal of 20122120113 is 31102122102.

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

It is not a de Polignac number, because 20122120113 - 21 = 20122120111 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20122120092 and 20122120101.

It is not an unprimeable number, because it can be changed into a prime (20122120111) 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, 45940695 + ... + 45941132.

It is an arithmetic number, because the mean of its divisors is an integer number (3399627636).

Almost surely, 220122120113 is an apocalyptic number.

It is an amenable number.

20122120113 is a deficient number, since it is larger than the sum of its proper divisors (7074900975).

20122120113 is an equidigital number, since it uses as much as digits as its factorization.

20122120113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91881903.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20122120113 its reverse (31102122102), we get a palindrome (51224242215).

The spelling of 20122120113 in words is "twenty billion, one hundred twenty-two million, one hundred twenty thousand, one hundred thirteen".

Divisors: 1 3 73 219 91881827 275645481 6707373371 20122120113