47145122103 has 4 divisors (see below), whose sum is σ = 62860162808. Its totient is φ = 31430081400.

The previous prime is 47145122099. The next prime is 47145122117. The reversal of 47145122103 is 30122154174.

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

It is not a de Polignac number, because 47145122103 - 2² = 47145122099 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 (47145142103) 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, 7857520348 + ... + 7857520353.

It is an arithmetic number, because the mean of its divisors is an integer number (15715040702).

Almost surely, 2^47145122103 is an apocalyptic number.

47145122103 is a deficient number, since it is larger than the sum of its proper divisors (15715040705).

47145122103 is a wasteful number, since it uses less digits than its factorization.

47145122103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15715040704.

The product of its (nonzero) digits is 6720, while the sum is 30.

Adding to 47145122103 its reverse (30122154174), we get a palindrome (77267276277).

The spelling of 47145122103 in words is "forty-seven billion, one hundred forty-five million, one hundred twenty-two thousand, one hundred three".