3123122030213 has 4 divisors (see below), whose sum is σ = 3123161262060. Its totient is φ = 3123082798368.

The previous prime is 3123122030209. The next prime is 3123122030269. The reversal of 3123122030213 is 3120302213213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2880701691169 + 242420339044 = 1697263^2 + 492362^2 .

It is a cyclic number.

It is not a de Polignac number, because 3123122030213 - 2² = 3123122030209 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123122038213) 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, 19496270 + ... + 19655807.

It is an arithmetic number, because the mean of its divisors is an integer number (780790315515).

Almost surely, 2^{3123122030213} is an apocalyptic number.

It is an amenable number.

3123122030213 is a deficient number, since it is larger than the sum of its proper divisors (39231847).

3123122030213 is an equidigital number, since it uses as much as digits as its factorization.

3123122030213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39231846.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 3123122030213 its reverse (3120302213213), we get a palindrome (6243424243426).

The spelling of 3123122030213 in words is "three trillion, one hundred twenty-three billion, one hundred twenty-two million, thirty thousand, two hundred thirteen".