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10121101 = 12598039
BaseRepresentation
bin100110100110…
…111110001101
3201001012112121
4212212332031
510042333401
61000532541
7152012404
oct46467615
921035477
1010121101
115793151
123481151
132134a23
1414b663b
15d4dca1
hex9a6f8d

10121101 has 4 divisors (see below), whose sum is σ = 10130400. Its totient is φ = 10111804.

The previous prime is 10121093. The next prime is 10121107. The reversal of 10121101 is 10112101.

Adding to 10121101 its reverse (10112101), we get a palindrome (20233202).

Multipling 10121101 by its reverse (10112101), we get a palindrome (102345595543201).

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 10121101 - 23 = 10121093 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 (10121107) 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, 2761 + ... + 5278.

It is an arithmetic number, because the mean of its divisors is an integer number (2532600).

Almost surely, 210121101 is an apocalyptic number.

It is an amenable number.

10121101 is a deficient number, since it is larger than the sum of its proper divisors (9299).

10121101 is an equidigital number, since it uses as much as digits as its factorization.

10121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9298.

The product of its (nonzero) digits is 2, while the sum is 7.

The square root of 10121101 is about 3181.3677876033. The cubic root of 10121101 is about 216.3096624446.

The spelling of 10121101 in words is "ten million, one hundred twenty-one thousand, one hundred one".

Divisors: 1 1259 8039 10121101