2123562990011 has 2 divisors, whose sum is σ = 2123562990012. Its totient is φ = 2123562990010.

The previous prime is 2123562989987. The next prime is 2123562990083. The reversal of 2123562990011 is 1100992653212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2123562990011 is a prime.

It is not a weakly prime, because it can be changed into another prime (2123562992011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061781495005 + 1061781495006.

It is an arithmetic number, because the mean of its divisors is an integer number (1061781495006).

Almost surely, 2^{2123562990011} is an apocalyptic number.

2123562990011 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123562990011 is an equidigital number, since it uses as much as digits as its factorization.

2123562990011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 41.

The spelling of 2123562990011 in words is "two trillion, one hundred twenty-three billion, five hundred sixty-two million, nine hundred ninety thousand, eleven".