123542525305211 has 16 divisors (see below), whose sum is σ = 128171561472000. Its totient is φ = 118954920254400.

The previous prime is 123542525305201. The next prime is 123542525305217. The reversal of 123542525305211 is 112503525245321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123542525305211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123542525305217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3741386 + ... + 16158063.

It is an arithmetic number, because the mean of its divisors is an integer number (8010722592000).

Almost surely, 2^{123542525305211} is an apocalyptic number.

123542525305211 is a deficient number, since it is larger than the sum of its proper divisors (4629036166789).

123542525305211 is a wasteful number, since it uses less digits than its factorization.

123542525305211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19900490.

The product of its (nonzero) digits is 360000, while the sum is 41.

The spelling of 123542525305211 in words is "one hundred twenty-three trillion, five hundred forty-two billion, five hundred twenty-five million, three hundred five thousand, two hundred eleven".