125331565020 has 48 divisors (see below), whose sum is σ = 356681316768. Its totient is φ = 32873852160.

The previous prime is 125331565013. The next prime is 125331565027. The reversal of 125331565020 is 20565133521.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (125331565013) and next prime (125331565027).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125331565027) 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 15 ways as a sum of consecutive naturals, for example, 17118139 + ... + 17125458.

It is an arithmetic number, because the mean of its divisors is an integer number (7430860766).

Almost surely, 2^125331565020 is an apocalyptic number.

125331565020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125331565020 is an abundant number, since it is smaller than the sum of its proper divisors (231349751748).

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

125331565020 is a wasteful number, since it uses less digits than its factorization.

125331565020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34243670 (or 34243668 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 33.

Adding to 125331565020 its reverse (20565133521), we get a palindrome (145896698541).

The spelling of 125331565020 in words is "one hundred twenty-five billion, three hundred thirty-one million, five hundred sixty-five thousand, twenty".