3121011043 has 2 divisors, whose sum is σ = 3121011044. Its totient is φ = 3121011042.

The previous prime is 3121010933. The next prime is 3121011083. The reversal of 3121011043 is 3401101213.

3121011043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3121011043 - 2⁹ = 3121010531 is a prime.

It is not a weakly prime, because it can be changed into another prime (3121011083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560505521 + 1560505522.

It is an arithmetic number, because the mean of its divisors is an integer number (1560505522).

Almost surely, 2^3121011043 is an apocalyptic number.

3121011043 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121011043 is an equidigital number, since it uses as much as digits as its factorization.

3121011043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 3121011043 is about 55866.0097286355. The cubic root of 3121011043 is about 1461.3865359142.

Adding to 3121011043 its reverse (3401101213), we get a palindrome (6522112256).

The spelling of 3121011043 in words is "three billion, one hundred twenty-one million, eleven thousand, forty-three".