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20123303011 = 721503133691
BaseRepresentation
bin10010101111011100…
…010011110001100011
31220221102112201011221
4102233130103301203
5312203031144021
613124452115511
71311450152620
oct225734236143
956842481157
1020123303011
118597097439
123a97305b97
131b890ba0b6
14d8c821347
157cb9c5241
hex4af713c63

20123303011 has 8 divisors (see below), whose sum is σ = 22999302144. Its totient is φ = 17247614280.

The previous prime is 20123302999. The next prime is 20123303041. The reversal of 20123303011 is 11030332102.

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

It is a cyclic number.

It is not a de Polignac number, because 20123303011 - 221 = 20121205859 is a prime.

It is a super-2 number, since 2×201233030112 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20123303041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83676 + ... + 217366.

It is an arithmetic number, because the mean of its divisors is an integer number (2874912768).

Almost surely, 220123303011 is an apocalyptic number.

20123303011 is a deficient number, since it is larger than the sum of its proper divisors (2875999133).

20123303011 is a wasteful number, since it uses less digits than its factorization.

20123303011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155201.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20123303011 its reverse (11030332102), we get a palindrome (31153635113).

The spelling of 20123303011 in words is "twenty billion, one hundred twenty-three million, three hundred three thousand, eleven".

Divisors: 1 7 21503 133691 150521 935837 2874757573 20123303011