23103047 has 4 divisors (see below), whose sum is σ = 25203336. Its totient is φ = 21002760.

The previous prime is 23103037. The next prime is 23103061. The reversal of 23103047 is 74030132.

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

It is a cyclic number.

It is not a de Polignac number, because 23103047 - 2¹² = 23098951 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 (23103037) 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, 1050128 + ... + 1050149.

It is an arithmetic number, because the mean of its divisors is an integer number (6300834).

Almost surely, 2^23103047 is an apocalyptic number.

23103047 is a deficient number, since it is larger than the sum of its proper divisors (2100289).

23103047 is a wasteful number, since it uses less digits than its factorization.

23103047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100288.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 23103047 is about 4806.5629091899. The cubic root of 23103047 is about 284.8107782646.

Adding to 23103047 its reverse (74030132), we get a palindrome (97133179).

The spelling of 23103047 in words is "twenty-three million, one hundred three thousand, forty-seven".