245173127523113 has 4 divisors (see below), whose sum is σ = 245234374873488. Its totient is φ = 245111880172740.

The previous prime is 245173127523041. The next prime is 245173127523193. The reversal of 245173127523113 is 311325721371542.

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.

It is a cyclic number.

It is not a de Polignac number, because 245173127523113 - 2²⁰ = 245173126474537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (245173127523193) 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, 30623669183 + ... + 30623677188.

It is an arithmetic number, because the mean of its divisors is an integer number (61308593718372).

Almost surely, 2^{245173127523113} is an apocalyptic number.

It is an amenable number.

245173127523113 is a deficient number, since it is larger than the sum of its proper divisors (61247350375).

245173127523113 is an equidigital number, since it uses as much as digits as its factorization.

245173127523113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61247350374.

The product of its digits is 1058400, while the sum is 47.

Adding to 245173127523113 its reverse (311325721371542), we get a palindrome (556498848894655).

The spelling of 245173127523113 in words is "two hundred forty-five trillion, one hundred seventy-three billion, one hundred twenty-seven million, five hundred twenty-three thousand, one hundred thirteen".