11151220211357 has 2 divisors, whose sum is σ = 11151220211358. Its totient is φ = 11151220211356.

The previous prime is 11151220211273. The next prime is 11151220211401. The reversal of 11151220211357 is 75311202215111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10387380918916 + 763839292441 = 3222946^2 + 873979^2 .

It is a cyclic number.

It is not a de Polignac number, because 11151220211357 - 2⁸ = 11151220211101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11151220211657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5575610105678 + 5575610105679.

It is an arithmetic number, because the mean of its divisors is an integer number (5575610105679).

Almost surely, 2^{11151220211357} is an apocalyptic number.

It is an amenable number.

11151220211357 is a deficient number, since it is larger than the sum of its proper divisors (1).

11151220211357 is an equidigital number, since it uses as much as digits as its factorization.

11151220211357 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4200, while the sum is 32.

Adding to 11151220211357 its reverse (75311202215111), we get a palindrome (86462422426468).

The spelling of 11151220211357 in words is "eleven trillion, one hundred fifty-one billion, two hundred twenty million, two hundred eleven thousand, three hundred fifty-seven".