3103213112121 has 4 divisors (see below), whose sum is σ = 4137617482832. Its totient is φ = 2068808741412.

The previous prime is 3103213112047. The next prime is 3103213112177. The reversal of 3103213112121 is 1212113123013.

3103213112121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3103213112121 - 2¹⁸ = 3103212849977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3103215112121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517202185351 + ... + 517202185356.

It is an arithmetic number, because the mean of its divisors is an integer number (1034404370708).

Almost surely, 2^{3103213112121} is an apocalyptic number.

It is an amenable number.

3103213112121 is a deficient number, since it is larger than the sum of its proper divisors (1034404370711).

3103213112121 is a wasteful number, since it uses less digits than its factorization.

3103213112121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034404370710.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 3103213112121 its reverse (1212113123013), we get a palindrome (4315326235134).

The spelling of 3103213112121 in words is "three trillion, one hundred three billion, two hundred thirteen million, one hundred twelve thousand, one hundred twenty-one".