103121113101320 has 32 divisors (see below), whose sum is σ = 232022825357400. Its totient is φ = 41248388195328.

The previous prime is 103121113101233. The next prime is 103121113101341. The reversal of 103121113101320 is 23101311121301.

It can be written as a sum of positive squares in 4 ways, for example, as 103051449833476 + 69663267844 = 10151426^2 + 263938^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 103121113101292 and 103121113101301.

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 7 ways as a sum of consecutive naturals, for example, 39047696 + ... + 41604864.

Almost surely, 2^{103121113101320} is an apocalyptic number.

103121113101320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103121113101320 is an abundant number, since it is smaller than the sum of its proper divisors (128901712256080).

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

103121113101320 is a wasteful number, since it uses less digits than its factorization.

103121113101320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3565337 (or 3565333 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 103121113101320 its reverse (23101311121301), we get a palindrome (126222424222621).

The spelling of 103121113101320 in words is "one hundred three trillion, one hundred twenty-one billion, one hundred thirteen million, one hundred one thousand, three hundred twenty".