125435542132211 has 4 divisors (see below), whose sum is σ = 125435721414192. Its totient is φ = 125435362850232.

The previous prime is 125435542132133. The next prime is 125435542132217. The reversal of 125435542132211 is 112231245534521.

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 125435542132211 - 2²⁶ = 125435475023347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125435542132217) 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, 88587380 + ... + 89992193.

It is an arithmetic number, because the mean of its divisors is an integer number (31358930353548).

Almost surely, 2^{125435542132211} is an apocalyptic number.

125435542132211 is a deficient number, since it is larger than the sum of its proper divisors (179281981).

125435542132211 is an equidigital number, since it uses as much as digits as its factorization.

125435542132211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179281980.

The product of its digits is 288000, while the sum is 41.

Adding to 125435542132211 its reverse (112231245534521), we get a palindrome (237666787666732).

The spelling of 125435542132211 in words is "one hundred twenty-five trillion, four hundred thirty-five billion, five hundred forty-two million, one hundred thirty-two thousand, two hundred eleven".