103400120985 has 16 divisors (see below), whose sum is σ = 189074507136. Its totient is φ = 47268626688.

The previous prime is 103400120983. The next prime is 103400121017. The reversal of 103400120985 is 589021004301.

It is not a de Polignac number, because 103400120985 - 2¹ = 103400120983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (103400120983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 492381424 + ... + 492381633.

It is an arithmetic number, because the mean of its divisors is an integer number (11817156696).

Almost surely, 2^103400120985 is an apocalyptic number.

103400120985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103400120985 is a deficient number, since it is larger than the sum of its proper divisors (85674386151).

103400120985 is an equidigital number, since it uses as much as digits as its factorization.

103400120985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984763072.

The product of its (nonzero) digits is 8640, while the sum is 33.

The spelling of 103400120985 in words is "one hundred three billion, four hundred million, one hundred twenty thousand, nine hundred eighty-five".