120111020212811 has 2 divisors, whose sum is σ = 120111020212812. Its totient is φ = 120111020212810.

The previous prime is 120111020212727. The next prime is 120111020212817. The reversal of 120111020212811 is 118212020111021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120111020212811 is a prime.

It is not a weakly prime, because it can be changed into another prime (120111020212817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60055510106405 + 60055510106406.

It is an arithmetic number, because the mean of its divisors is an integer number (60055510106406).

Almost surely, 2^{120111020212811} is an apocalyptic number.

120111020212811 is a deficient number, since it is larger than the sum of its proper divisors (1).

120111020212811 is an equidigital number, since it uses as much as digits as its factorization.

120111020212811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 23.

Adding to 120111020212811 its reverse (118212020111021), we get a palindrome (238323040323832).

The spelling of 120111020212811 in words is "one hundred twenty trillion, one hundred eleven billion, twenty million, two hundred twelve thousand, eight hundred eleven".