3121242030213 has 16 divisors (see below), whose sum is σ = 4380745305600. Its totient is φ = 1971286124400.

The previous prime is 3121242030209. The next prime is 3121242030217. The reversal of 3121242030213 is 3120302421213.

It is an interprime number because it is at equal distance from previous prime (3121242030209) and next prime (3121242030217).

It is not a de Polignac number, because 3121242030213 - 2² = 3121242030209 is a prime.

It is a super-2 number, since 2×3121242030213² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121242030217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4979578 + ... + 5571236.

It is an arithmetic number, because the mean of its divisors is an integer number (273796581600).

Almost surely, 2^{3121242030213} is an apocalyptic number.

It is an amenable number.

3121242030213 is a deficient number, since it is larger than the sum of its proper divisors (1259503275387).

3121242030213 is a wasteful number, since it uses less digits than its factorization.

3121242030213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 684232.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 3121242030213 its reverse (3120302421213), we get a palindrome (6241544451426).

The spelling of 3121242030213 in words is "three trillion, one hundred twenty-one billion, two hundred forty-two million, thirty thousand, two hundred thirteen".