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20012122103 is a prime number
BaseRepresentation
bin10010101000110100…
…001011111111110111
31220122200100010122112
4102220310023333313
5311441100401403
613105441121235
71305630142211
oct225064137767
956580303575
1020012122103
11853a359596
123a6602921b
131b6c06038c
14d7bb5d5b1
157c1d629d8
hex4a8d0bff7

20012122103 has 2 divisors, whose sum is σ = 20012122104. Its totient is φ = 20012122102.

The previous prime is 20012122073. The next prime is 20012122111. The reversal of 20012122103 is 30122121002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20012122103 - 210 = 20012121079 is a prime.

It is a super-2 number, since 2×200121221032 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20012122303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10006061051 + 10006061052.

It is an arithmetic number, because the mean of its divisors is an integer number (10006061052).

Almost surely, 220012122103 is an apocalyptic number.

20012122103 is a deficient number, since it is larger than the sum of its proper divisors (1).

20012122103 is an equidigital number, since it uses as much as digits as its factorization.

20012122103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20012122103 its reverse (30122121002), we get a palindrome (50134243105).

The spelling of 20012122103 in words is "twenty billion, twelve million, one hundred twenty-two thousand, one hundred three".