125135213034 has 64 divisors (see below), whose sum is σ = 280217952000. Its totient is φ = 36988503552.

The previous prime is 125135213033. The next prime is 125135213041. The reversal of 125135213034 is 430312531521.

It is a junction number, because it is equal to n+sod(n) for n = 125135212992 and 125135213010.

It is not an unprimeable number, because it can be changed into a prime (125135213033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 311142 + ... + 589134.

It is an arithmetic number, because the mean of its divisors is an integer number (4378405500).

Almost surely, 2^125135213034 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125135213034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140108976000).

125135213034 is an abundant number, since it is smaller than the sum of its proper divisors (155082738966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125135213034 is a wasteful number, since it uses less digits than its factorization.

125135213034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278239.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 125135213034 its reverse (430312531521), we get a palindrome (555447744555).

The spelling of 125135213034 in words is "one hundred twenty-five billion, one hundred thirty-five million, two hundred thirteen thousand, thirty-four".