2111120011157 has 2 divisors, whose sum is σ = 2111120011158. Its totient is φ = 2111120011156.

The previous prime is 2111120011081. The next prime is 2111120011181. The reversal of 2111120011157 is 7511100211112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2098908435121 + 12211576036 = 1448761^2 + 110506^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111120011157 - 2¹⁴ = 2111119994773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111120010157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055560005578 + 1055560005579.

It is an arithmetic number, because the mean of its divisors is an integer number (1055560005579).

Almost surely, 2^{2111120011157} is an apocalyptic number.

It is an amenable number.

2111120011157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111120011157 is an equidigital number, since it uses as much as digits as its factorization.

2111120011157 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 23.

Adding to 2111120011157 its reverse (7511100211112), we get a palindrome (9622220222269).

The spelling of 2111120011157 in words is "two trillion, one hundred eleven billion, one hundred twenty million, eleven thousand, one hundred fifty-seven".