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3124121101 = 3919979699
BaseRepresentation
bin1011101000110110…
…0100111000001101
322001201120210110221
42322031210320031
522344233333401
61234000431341
7140263406533
oct27215447015
98051523427
103124121101
111363537472
12732318551
133aa32218a
14218cb6153
151344107a1
hexba364e0d

3124121101 has 4 divisors (see below), whose sum is σ = 3124240000. Its totient is φ = 3124002204.

The previous prime is 3124121083. The next prime is 3124121129. The reversal of 3124121101 is 1011214213.

3124121101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1011214213 = 1759483189.

It is a cyclic number.

It is not a de Polignac number, because 3124121101 - 213 = 3124112909 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 (3124121401) 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, 651 + ... + 79048.

It is an arithmetic number, because the mean of its divisors is an integer number (781060000).

Almost surely, 23124121101 is an apocalyptic number.

It is an amenable number.

3124121101 is a deficient number, since it is larger than the sum of its proper divisors (118899).

3124121101 is an equidigital number, since it uses as much as digits as its factorization.

3124121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118898.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 3124121101 is about 55893.8377730497. The cubic root of 3124121101 is about 1461.8717940541.

Adding to 3124121101 its reverse (1011214213), we get a palindrome (4135335314).

The spelling of 3124121101 in words is "three billion, one hundred twenty-four million, one hundred twenty-one thousand, one hundred one".

Divisors: 1 39199 79699 3124121101