120990200111 has 32 divisors (see below), whose sum is σ = 144811130880. Its totient is φ = 99861141600.

The previous prime is 120990200101. The next prime is 120990200137. The reversal of 120990200111 is 111002099021.

It is not a de Polignac number, because 120990200111 - 2¹⁰ = 120990199087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120990200101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 576686 + ... + 757988.

It is an arithmetic number, because the mean of its divisors is an integer number (4525347840).

Almost surely, 2^120990200111 is an apocalyptic number.

120990200111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120990200111 is a deficient number, since it is larger than the sum of its proper divisors (23820930769).

120990200111 is a wasteful number, since it uses less digits than its factorization.

120990200111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181467.

The product of its (nonzero) digits is 324, while the sum is 26.

Adding to 120990200111 its reverse (111002099021), we get a palindrome (231992299132).

The spelling of 120990200111 in words is "one hundred twenty billion, nine hundred ninety million, two hundred thousand, one hundred eleven".