1331201357 has 2 divisors, whose sum is σ = 1331201358. Its totient is φ = 1331201356.

The previous prime is 1331201329. The next prime is 1331201423. The reversal of 1331201357 is 7531021331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 867832681 + 463368676 = 29459^2 + 21526^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1331201357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1331201327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665600678 + 665600679.

It is an arithmetic number, because the mean of its divisors is an integer number (665600679).

Almost surely, 2^1331201357 is an apocalyptic number.

It is an amenable number.

1331201357 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331201357 is an equidigital number, since it uses as much as digits as its factorization.

1331201357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 1331201357 is about 36485.6321995385. The cubic root of 1331201357 is about 1100.0554674509.

Adding to 1331201357 its reverse (7531021331), we get a palindrome (8862222688).

The spelling of 1331201357 in words is "one billion, three hundred thirty-one million, two hundred one thousand, three hundred fifty-seven".