1301120311 has 2 divisors, whose sum is σ = 1301120312. Its totient is φ = 1301120310.

The previous prime is 1301120297. The next prime is 1301120377. The reversal of 1301120311 is 1130211031.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1301120311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1301120291 and 1301120300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1301120111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650560155 + 650560156.

It is an arithmetic number, because the mean of its divisors is an integer number (650560156).

Almost surely, 2^1301120311 is an apocalyptic number.

1301120311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301120311 is an equidigital number, since it uses as much as digits as its factorization.

1301120311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1301120311 is about 36071.0453272427. The cubic root of 1301120311 is about 1091.7063057248.

Adding to 1301120311 its reverse (1130211031), we get a palindrome (2431331342).

The spelling of 1301120311 in words is "one billion, three hundred one million, one hundred twenty thousand, three hundred eleven".