2145600320203 has 4 divisors (see below), whose sum is σ = 2158448226480. Its totient is φ = 2132752413928.

The previous prime is 2145600320153. The next prime is 2145600320233. The reversal of 2145600320203 is 3020230065412.

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 2145600320203 - 2⁹ = 2145600319691 is a prime.

It is a super-2 number, since 2×2145600320203² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145600320233) 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, 6423952888 + ... + 6423953221.

It is an arithmetic number, because the mean of its divisors is an integer number (539612056620).

Almost surely, 2^{2145600320203} is an apocalyptic number.

2145600320203 is a deficient number, since it is larger than the sum of its proper divisors (12847906277).

2145600320203 is a wasteful number, since it uses less digits than its factorization.

2145600320203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12847906276.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 2145600320203 its reverse (3020230065412), we get a palindrome (5165830385615).

The spelling of 2145600320203 in words is "two trillion, one hundred forty-five billion, six hundred million, three hundred twenty thousand, two hundred three".