103121331010 has 16 divisors (see below), whose sum is σ = 185660921016. Its totient is φ = 41239082368.

The previous prime is 103121330909. The next prime is 103121331041. The reversal of 103121331010 is 10133121301.

It can be written as a sum of positive squares in 4 ways, for example, as 71213725881 + 31907605129 = 266859^2 + 178627^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1135339 + ... + 1222798.

Almost surely, 2^103121331010 is an apocalyptic number.

103121331010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103121331010 is a deficient number, since it is larger than the sum of its proper divisors (82539590006).

103121331010 is a wasteful number, since it uses less digits than its factorization.

103121331010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2362517.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 103121331010 its reverse (10133121301), we get a palindrome (113254452311).

The spelling of 103121331010 in words is "one hundred three billion, one hundred twenty-one million, three hundred thirty-one thousand, ten".