2011200211931 has 2 divisors, whose sum is σ = 2011200211932. Its totient is φ = 2011200211930.

The previous prime is 2011200211901. The next prime is 2011200212027. The reversal of 2011200211931 is 1391120021102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011200211931 is a prime.

It is a super-2 number, since 2×2011200211931² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2011200211897 and 2011200211906.

It is not a weakly prime, because it can be changed into another prime (2011200211901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005600105965 + 1005600105966.

It is an arithmetic number, because the mean of its divisors is an integer number (1005600105966).

Almost surely, 2^{2011200211931} is an apocalyptic number.

2011200211931 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011200211931 is an equidigital number, since it uses as much as digits as its factorization.

2011200211931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 23.

The spelling of 2011200211931 in words is "two trillion, eleven billion, two hundred million, two hundred eleven thousand, nine hundred thirty-one".