2111057206157 has 2 divisors, whose sum is σ = 2111057206158. Its totient is φ = 2111057206156.

The previous prime is 2111057206129. The next prime is 2111057206207. The reversal of 2111057206157 is 7516027501112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2086505136676 + 24552069481 = 1444474^2 + 156691^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111057206157 - 2¹² = 2111057202061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2111057206157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111057806157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055528603078 + 1055528603079.

It is an arithmetic number, because the mean of its divisors is an integer number (1055528603079).

Almost surely, 2^{2111057206157} is an apocalyptic number.

It is an amenable number.

2111057206157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111057206157 is an equidigital number, since it uses as much as digits as its factorization.

2111057206157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29400, while the sum is 38.

The spelling of 2111057206157 in words is "two trillion, one hundred eleven billion, fifty-seven million, two hundred six thousand, one hundred fifty-seven".