103121013 has 8 divisors (see below), whose sum is σ = 142236000. Its totient is φ = 66376688.

The previous prime is 103120981. The next prime is 103121023. The reversal of 103121013 is 310121301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 103121013 - 2⁵ = 103120981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103121013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103121023) by changing a digit.

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, 592563 + ... + 592736.

It is an arithmetic number, because the mean of its divisors is an integer number (17779500).

Almost surely, 2^103121013 is an apocalyptic number.

It is an amenable number.

103121013 is a deficient number, since it is larger than the sum of its proper divisors (39114987).

103121013 is a wasteful number, since it uses less digits than its factorization.

103121013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185331.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 103121013 is about 10154.8516975877. The cubic root of 103121013 is about 468.9383203499.

Adding to 103121013 its reverse (310121301), we get a palindrome (413242314).

It can be divided in two parts, 10312 and 1013, that added together give a triangular number (11325 = T₁₅₀).

The spelling of 103121013 in words is "one hundred three million, one hundred twenty-one thousand, thirteen".