125323211205 has 64 divisors (see below), whose sum is σ = 225100212480. Its totient is φ = 66150991872.

The previous prime is 125323211201. The next prime is 125323211213. The reversal of 125323211205 is 502112323521.

125323211205 is a `hidden beast` number, since 1 + 2 + 532 + 3 + 2 + 1 + 120 + 5 = 666.

It is not a de Polignac number, because 125323211205 - 2² = 125323211201 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125323211201) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6222762 + ... + 6242868.

It is an arithmetic number, because the mean of its divisors is an integer number (3517190820).

Almost surely, 2^125323211205 is an apocalyptic number.

125323211205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

125323211205 is a deficient number, since it is larger than the sum of its proper divisors (99777001275).

125323211205 is a wasteful number, since it uses less digits than its factorization.

125323211205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20595 (or 20589 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 125323211205 its reverse (502112323521), we get a palindrome (627435534726).

The spelling of 125323211205 in words is "one hundred twenty-five billion, three hundred twenty-three million, two hundred eleven thousand, two hundred five".