245271123043 has 4 divisors (see below), whose sum is σ = 245289346560. Its totient is φ = 245252899528.

The previous prime is 245271123029. The next prime is 245271123049. The reversal of 245271123043 is 340321172542.

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 245271123043 - 2¹⁷ = 245270991971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245271123049) 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, 9091555 + ... + 9118492.

It is an arithmetic number, because the mean of its divisors is an integer number (61322336640).

Almost surely, 2^245271123043 is an apocalyptic number.

245271123043 is a deficient number, since it is larger than the sum of its proper divisors (18223517).

245271123043 is a wasteful number, since it uses less digits than its factorization.

245271123043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18223516.

The product of its (nonzero) digits is 40320, while the sum is 34.

Adding to 245271123043 its reverse (340321172542), we get a palindrome (585592295585).

The spelling of 245271123043 in words is "two hundred forty-five billion, two hundred seventy-one million, one hundred twenty-three thousand, forty-three".