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20210130011 = 127915801509
BaseRepresentation
bin10010110100100111…
…100001110001011011
31221011110220222102202
4102310213201301123
5312342243130021
613141233120415
71313553161561
oct226447416133
957143828382
1020210130011
118631100895
123b003b910b
131ba109aa16
14d9a183a31
157d4426a0b
hex4b49e1c5b

20210130011 has 4 divisors (see below), whose sum is σ = 20225932800. Its totient is φ = 20194327224.

The previous prime is 20210129993. The next prime is 20210130013. The reversal of 20210130011 is 11003101202.

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 20210130011 - 222 = 20205935707 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20210129974 and 20210130001.

It is not an unprimeable number, because it can be changed into a prime (20210130013) 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, 7899476 + ... + 7902033.

It is an arithmetic number, because the mean of its divisors is an integer number (5056483200).

Almost surely, 220210130011 is an apocalyptic number.

20210130011 is a deficient number, since it is larger than the sum of its proper divisors (15802789).

20210130011 is a wasteful number, since it uses less digits than its factorization.

20210130011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15802788.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 20210130011 its reverse (11003101202), we get a palindrome (31213231213).

The spelling of 20210130011 in words is "twenty billion, two hundred ten million, one hundred thirty thousand, eleven".

Divisors: 1 1279 15801509 20210130011