11112102120157 has 2 divisors, whose sum is σ = 11112102120158. Its totient is φ = 11112102120156.

The previous prime is 11112102120107. The next prime is 11112102120313. The reversal of 11112102120157 is 75102120121111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5632106718436 + 5479995401721 = 2373206^2 + 2340939^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11112102120157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11112102120107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556051060078 + 5556051060079.

It is an arithmetic number, because the mean of its divisors is an integer number (5556051060079).

Almost surely, 2^{11112102120157} is an apocalyptic number.

It is an amenable number.

11112102120157 is a deficient number, since it is larger than the sum of its proper divisors (1).

11112102120157 is an equidigital number, since it uses as much as digits as its factorization.

11112102120157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 25.

Adding to 11112102120157 its reverse (75102120121111), we get a palindrome (86214222241268).

The spelling of 11112102120157 in words is "eleven trillion, one hundred twelve billion, one hundred two million, one hundred twenty thousand, one hundred fifty-seven".