5156321011 has 2 divisors, whose sum is σ = 5156321012. Its totient is φ = 5156321010.

The previous prime is 5156320993. The next prime is 5156321021. The reversal of 5156321011 is 1101236515.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5156321011 is a prime.

It is not a weakly prime, because it can be changed into another prime (5156321021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2578160505 + 2578160506.

It is an arithmetic number, because the mean of its divisors is an integer number (2578160506).

Almost surely, 2^5156321011 is an apocalyptic number.

5156321011 is a deficient number, since it is larger than the sum of its proper divisors (1).

5156321011 is an equidigital number, since it uses as much as digits as its factorization.

5156321011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 5156321011 is about 71807.5275371601. The cubic root of 5156321011 is about 1727.6137382311.

Adding to 5156321011 its reverse (1101236515), we get a palindrome (6257557526).

The spelling of 5156321011 in words is "five billion, one hundred fifty-six million, three hundred twenty-one thousand, eleven".