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10101212323 = 85837117679
BaseRepresentation
bin10010110100001010…
…00100010010100011
3222001222012202022221
421122011010102203
5131141402243243
64350200011511
7505213613416
oct113205042243
928058182287
1010101212323
114313964364
121b5aa60b97
13c4c966a17
146bb78bb7d
153e1c01bed
hex25a1444a3

10101212323 has 4 divisors (see below), whose sum is σ = 10101415840. Its totient is φ = 10101008808.

The previous prime is 10101212311. The next prime is 10101212333. The reversal of 10101212323 is 32321210101.

10101212323 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32321210101 = 171901247653.

It is a cyclic number.

It is not a de Polignac number, because 10101212323 - 217 = 10101081251 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10101212297 and 10101212306.

It is not an unprimeable number, because it can be changed into a prime (10101212333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26998 + ... + 144676.

It is an arithmetic number, because the mean of its divisors is an integer number (2525353960).

Almost surely, 210101212323 is an apocalyptic number.

10101212323 is a deficient number, since it is larger than the sum of its proper divisors (203517).

10101212323 is an equidigital number, since it uses as much as digits as its factorization.

10101212323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203516.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 10101212323 its reverse (32321210101), we get a palindrome (42422422424).

The spelling of 10101212323 in words is "ten billion, one hundred one million, two hundred twelve thousand, three hundred twenty-three".

Divisors: 1 85837 117679 10101212323