11020120120157 has 2 divisors, whose sum is σ = 11020120120158. Its totient is φ = 11020120120156.

The previous prime is 11020120120151. The next prime is 11020120120201. The reversal of 11020120120157 is 75102102102011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6687452892121 + 4332667228036 = 2586011^2 + 2081506^2 .

It is a cyclic number.

It is not a de Polignac number, because 11020120120157 - 2²⁰ = 11020119071581 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11020120120151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510060060078 + 5510060060079.

It is an arithmetic number, because the mean of its divisors is an integer number (5510060060079).

Almost surely, 2^{11020120120157} is an apocalyptic number.

It is an amenable number.

11020120120157 is a deficient number, since it is larger than the sum of its proper divisors (1).

11020120120157 is an equidigital number, since it uses as much as digits as its factorization.

11020120120157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 23.

Adding to 11020120120157 its reverse (75102102102011), we get a palindrome (86122222222168).

The spelling of 11020120120157 in words is "eleven trillion, twenty billion, one hundred twenty million, one hundred twenty thousand, one hundred fifty-seven".