2100111961151 has 2 divisors, whose sum is σ = 2100111961152. Its totient is φ = 2100111961150.

The previous prime is 2100111961133. The next prime is 2100111961153. The reversal of 2100111961151 is 1511691110012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100111961151 is a prime.

Together with 2100111961153, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100111961153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050055980575 + 1050055980576.

It is an arithmetic number, because the mean of its divisors is an integer number (1050055980576).

Almost surely, 2^{2100111961151} is an apocalyptic number.

2100111961151 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100111961151 is an equidigital number, since it uses as much as digits as its factorization.

2100111961151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 29.

The spelling of 2100111961151 in words is "two trillion, one hundred billion, one hundred eleven million, nine hundred sixty-one thousand, one hundred fifty-one".