20111001200249 has 2 divisors, whose sum is σ = 20111001200250. Its totient is φ = 20111001200248.

The previous prime is 20111001200221. The next prime is 20111001200291. The reversal of 20111001200249 is 94200210011102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12472233876025 + 7638767324224 = 3531605^2 + 2763832^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20111001200249 is a prime.

It is not a weakly prime, because it can be changed into another prime (20111001200299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055500600124 + 10055500600125.

It is an arithmetic number, because the mean of its divisors is an integer number (10055500600125).

Almost surely, 2^{20111001200249} is an apocalyptic number.

It is an amenable number.

20111001200249 is a deficient number, since it is larger than the sum of its proper divisors (1).

20111001200249 is an equidigital number, since it uses as much as digits as its factorization.

20111001200249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 20111001200249 in words is "twenty trillion, one hundred eleven billion, one million, two hundred thousand, two hundred forty-nine".