101856949125 has 16 divisors (see below), whose sum is σ = 169489963968. Its totient is φ = 54323706000.

The previous prime is 101856949087. The next prime is 101856949133. The reversal of 101856949125 is 521949658101.

It is not a de Polignac number, because 101856949125 - 2¹¹ = 101856947077 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135808891 + ... + 135809640.

It is an arithmetic number, because the mean of its divisors is an integer number (10593122748).

Almost surely, 2^101856949125 is an apocalyptic number.

101856949125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

101856949125 is a deficient number, since it is larger than the sum of its proper divisors (67633014843).

101856949125 is an equidigital number, since it uses as much as digits as its factorization.

101856949125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271618549 (or 271618539 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 51.

The spelling of 101856949125 in words is "one hundred one billion, eight hundred fifty-six million, nine hundred forty-nine thousand, one hundred twenty-five".