43502245123 has 4 divisors (see below), whose sum is σ = 43509648088. Its totient is φ = 43494842160.

The previous prime is 43502245121. The next prime is 43502245141. The reversal of 43502245123 is 32154220534.

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 43502245123 - 2¹ = 43502245121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43502245121) 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, 3692661 + ... + 3704422.

It is an arithmetic number, because the mean of its divisors is an integer number (10877412022).

Almost surely, 2^43502245123 is an apocalyptic number.

43502245123 is a deficient number, since it is larger than the sum of its proper divisors (7402965).

43502245123 is an equidigital number, since it uses as much as digits as its factorization.

43502245123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7402964.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 43502245123 its reverse (32154220534), we get a palindrome (75656465657).

The spelling of 43502245123 in words is "forty-three billion, five hundred two million, two hundred forty-five thousand, one hundred twenty-three".