3121032313123 has 4 divisors (see below), whose sum is σ = 3205384537840. Its totient is φ = 3036680088408.

The previous prime is 3121032313121. The next prime is 3121032313127. The reversal of 3121032313123 is 3213132301213.

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

It is a cyclic number.

It is not a de Polignac number, because 3121032313123 - 2¹ = 3121032313121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3121032313121) 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, 42176112303 + ... + 42176112376.

It is an arithmetic number, because the mean of its divisors is an integer number (801346134460).

Almost surely, 2^{3121032313123} is an apocalyptic number.

3121032313123 is a deficient number, since it is larger than the sum of its proper divisors (84352224717).

3121032313123 is an equidigital number, since it uses as much as digits as its factorization.

3121032313123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84352224716.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 3121032313123 its reverse (3213132301213), we get a palindrome (6334164614336).

The spelling of 3121032313123 in words is "three trillion, one hundred twenty-one billion, thirty-two million, three hundred thirteen thousand, one hundred twenty-three".