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101212102141 = 193524415037
BaseRepresentation
bin101111001000010110…
…1100001110111111101
3100200020122102111210121
41132100231201313331
53124240244232031
6114255102334541
710212062446663
oct1362055416775
9320218374717
10101212102141
1139a18658407
121774788a451
13970c980547
144c82020c33
152975866011
hex1790b61dfd

101212102141 has 4 divisors (see below), whose sum is σ = 101736517372. Its totient is φ = 100687686912.

The previous prime is 101212102133. The next prime is 101212102157. The reversal of 101212102141 is 141201212101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 42867632025 + 58344470116 = 207045^2 + 241546^2 .

It is a cyclic number.

It is not a de Polignac number, because 101212102141 - 23 = 101212102133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101212102841) 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, 262207326 + ... + 262207711.

It is an arithmetic number, because the mean of its divisors is an integer number (25434129343).

Almost surely, 2101212102141 is an apocalyptic number.

It is an amenable number.

101212102141 is a deficient number, since it is larger than the sum of its proper divisors (524415231).

101212102141 is an equidigital number, since it uses as much as digits as its factorization.

101212102141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524415230.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 101212102141 its reverse (141201212101), we get a palindrome (242413314242).

The spelling of 101212102141 in words is "one hundred one billion, two hundred twelve million, one hundred two thousand, one hundred forty-one".

Divisors: 1 193 524415037 101212102141