125533345013 has 4 divisors (see below), whose sum is σ = 125540251968. Its totient is φ = 125526438060.

The previous prime is 125533345001. The next prime is 125533345019. The reversal of 125533345013 is 310543335521.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310543335521 = 9203 ⋅33743707.

It is a cyclic number.

It is not a de Polignac number, because 125533345013 - 2⁸ = 125533344757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125533345019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3426143 + ... + 3462588.

It is an arithmetic number, because the mean of its divisors is an integer number (31385062992).

Almost surely, 2^125533345013 is an apocalyptic number.

It is an amenable number.

125533345013 is a deficient number, since it is larger than the sum of its proper divisors (6906955).

125533345013 is an equidigital number, since it uses as much as digits as its factorization.

125533345013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6906954.

The product of its (nonzero) digits is 81000, while the sum is 35.

The spelling of 125533345013 in words is "one hundred twenty-five billion, five hundred thirty-three million, three hundred forty-five thousand, thirteen".