1601313611 has 2 divisors, whose sum is σ = 1601313612. Its totient is φ = 1601313610.

The previous prime is 1601313599. The next prime is 1601313617. The reversal of 1601313611 is 1163131061.

It is a strong prime.

It is an emirp because it is prime and its reverse (1163131061) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1601313611 - 2¹⁴ = 1601297227 is a prime.

It is not a weakly prime, because it can be changed into another prime (1601313617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 800656805 + 800656806.

It is an arithmetic number, because the mean of its divisors is an integer number (800656806).

Almost surely, 2^1601313611 is an apocalyptic number.

1601313611 is a deficient number, since it is larger than the sum of its proper divisors (1).

1601313611 is an equidigital number, since it uses as much as digits as its factorization.

1601313611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 1601313611 is about 40016.4167686214. The cubic root of 1601313611 is about 1169.9270928831.

Adding to 1601313611 its reverse (1163131061), we get a palindrome (2764444672).

The spelling of 1601313611 in words is "one billion, six hundred one million, three hundred thirteen thousand, six hundred eleven".