3115121011 has 2 divisors, whose sum is σ = 3115121012. Its totient is φ = 3115121010.

The previous prime is 3115120997. The next prime is 3115121033. The reversal of 3115121011 is 1101215113.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3115121011 - 2⁹ = 3115120499 is a prime.

It is not a weakly prime, because it can be changed into another prime (3115121071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1557560505 + 1557560506.

It is an arithmetic number, because the mean of its divisors is an integer number (1557560506).

Almost surely, 2^3115121011 is an apocalyptic number.

3115121011 is a deficient number, since it is larger than the sum of its proper divisors (1).

3115121011 is an equidigital number, since it uses as much as digits as its factorization.

3115121011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 16.

The square root of 3115121011 is about 55813.2691301988. The cubic root of 3115121011 is about 1460.4666380729.

Adding to 3115121011 its reverse (1101215113), we get a palindrome (4216336124).

The spelling of 3115121011 in words is "three billion, one hundred fifteen million, one hundred twenty-one thousand, eleven".