3123031212011 has 2 divisors, whose sum is σ = 3123031212012. Its totient is φ = 3123031212010.

The previous prime is 3123031211959. The next prime is 3123031212017. The reversal of 3123031212011 is 1102121303213.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3123031212011 - 2²² = 3123027017707 is a prime.

It is not a weakly prime, because it can be changed into another prime (3123031212017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561515606005 + 1561515606006.

It is an arithmetic number, because the mean of its divisors is an integer number (1561515606006).

Almost surely, 2^{3123031212011} is an apocalyptic number.

3123031212011 is a deficient number, since it is larger than the sum of its proper divisors (1).

3123031212011 is an equidigital number, since it uses as much as digits as its factorization.

3123031212011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 3123031212011 its reverse (1102121303213), we get a palindrome (4225152515224).

The spelling of 3123031212011 in words is "three trillion, one hundred twenty-three billion, thirty-one million, two hundred twelve thousand, eleven".