1307121941 has 2 divisors, whose sum is σ = 1307121942. Its totient is φ = 1307121940.

The previous prime is 1307121923. The next prime is 1307121953. The reversal of 1307121941 is 1491217031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1305376900 + 1745041 = 36130^2 + 1321^2 .

It is a cyclic number.

It is not a de Polignac number, because 1307121941 - 2⁶ = 1307121877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1307124941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 653560970 + 653560971.

It is an arithmetic number, because the mean of its divisors is an integer number (653560971).

Almost surely, 2^1307121941 is an apocalyptic number.

It is an amenable number.

1307121941 is a deficient number, since it is larger than the sum of its proper divisors (1).

1307121941 is an equidigital number, since it uses as much as digits as its factorization.

1307121941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 1307121941 is about 36154.1414086962. The cubic root of 1307121941 is about 1093.3822893403.

Adding to 1307121941 its reverse (1491217031), we get a palindrome (2798338972).

The spelling of 1307121941 in words is "one billion, three hundred seven million, one hundred twenty-one thousand, nine hundred forty-one".