11211431348353 has 2 divisors, whose sum is σ = 11211431348354. Its totient is φ = 11211431348352.

The previous prime is 11211431348303. The next prime is 11211431348357. The reversal of 11211431348353 is 35384313411211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6785149748224 + 4426281600129 = 2604832^2 + 2103873^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11211431348353 is a prime.

It is not a weakly prime, because it can be changed into another prime (11211431348357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605715674176 + 5605715674177.

It is an arithmetic number, because the mean of its divisors is an integer number (5605715674177).

Almost surely, 2^{11211431348353} is an apocalyptic number.

It is an amenable number.

11211431348353 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211431348353 is an equidigital number, since it uses as much as digits as its factorization.

11211431348353 is an evil number, because the sum of its binary digits is even.

The product of its digits is 103680, while the sum is 40.

Adding to 11211431348353 its reverse (35384313411211), we get a palindrome (46595744759564).

The spelling of 11211431348353 in words is "eleven trillion, two hundred eleven billion, four hundred thirty-one million, three hundred forty-eight thousand, three hundred fifty-three".