120811902 has 16 divisors (see below), whose sum is σ = 246765312. Its totient is φ = 39413720.

The previous prime is 120811841. The next prime is 120811913. The reversal of 120811902 is 209118021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213924 + ... + 214487.

It is an arithmetic number, because the mean of its divisors is an integer number (15422832).

Almost surely, 2^120811902 is an apocalyptic number.

120811902 is an abundant number, since it is smaller than the sum of its proper divisors (125953410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

120811902 is a wasteful number, since it uses less digits than its factorization.

120811902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428463.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 120811902 is about 10991.4467655537. The cubic root of 120811902 is about 494.3523168710.

Adding to 120811902 its reverse (209118021), we get a palindrome (329929923).

The spelling of 120811902 in words is "one hundred twenty million, eight hundred eleven thousand, nine hundred two".