11211020100157 has 2 divisors, whose sum is σ = 11211020100158. Its totient is φ = 11211020100156.

The previous prime is 11211020100151. The next prime is 11211020100191. The reversal of 11211020100157 is 75100102011211.

11211020100157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11211019137796 + 962361 = 3348286^2 + 981^2 .

It is a cyclic number.

It is not a de Polignac number, because 11211020100157 - 2³¹ = 11208872616509 is a prime.

It is a super-2 number, since 2×11211020100157² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11211020100151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605510050078 + 5605510050079.

It is an arithmetic number, because the mean of its divisors is an integer number (5605510050079).

Almost surely, 2^{11211020100157} is an apocalyptic number.

It is an amenable number.

11211020100157 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211020100157 is an equidigital number, since it uses as much as digits as its factorization.

11211020100157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 22.

Adding to 11211020100157 its reverse (75100102011211), we get a palindrome (86311122111368).

The spelling of 11211020100157 in words is "eleven trillion, two hundred eleven billion, twenty million, one hundred thousand, one hundred fifty-seven".