3121221411031 has 4 divisors (see below), whose sum is σ = 3121681707064. Its totient is φ = 3120761115000.

The previous prime is 3121221411019. The next prime is 3121221411037. The reversal of 3121221411031 is 1301141221213.

3121221411031 is digitally balanced in base 3, 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.

It is a cyclic number.

It is not a de Polignac number, because 3121221411031 - 2⁵ = 3121221410999 is a prime.

It is a super-2 number, since 2×3121221411031² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3121221410993 and 3121221411011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121221411037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230137845 + ... + 230151406.

It is an arithmetic number, because the mean of its divisors is an integer number (780420426766).

Almost surely, 2^{3121221411031} is an apocalyptic number.

3121221411031 is a deficient number, since it is larger than the sum of its proper divisors (460296033).

3121221411031 is an equidigital number, since it uses as much as digits as its factorization.

3121221411031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460296032.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 3121221411031 its reverse (1301141221213), we get a palindrome (4422362632244).

The spelling of 3121221411031 in words is "three trillion, one hundred twenty-one billion, two hundred twenty-one million, four hundred eleven thousand, thirty-one".