103121123210 has 32 divisors (see below), whose sum is σ = 216137434752. Its totient is φ = 34688721600.

The previous prime is 103121123153. The next prime is 103121123221. The reversal of 103121123210 is 12321121301.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13894016 + ... + 13901435.

It is an arithmetic number, because the mean of its divisors is an integer number (6754294836).

Almost surely, 2^103121123210 is an apocalyptic number.

103121123210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103121123210 is an abundant number, since it is smaller than the sum of its proper divisors (113016311542).

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

103121123210 is a wasteful number, since it uses less digits than its factorization.

103121123210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27795518.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 103121123210 its reverse (12321121301), we get a palindrome (115442244511).

The spelling of 103121123210 in words is "one hundred three billion, one hundred twenty-one million, one hundred twenty-three thousand, two hundred ten".