120720511171010 has 16 divisors (see below), whose sum is σ = 217299724864056. Its totient is φ = 48287581189248.

The previous prime is 120720511170989. The next prime is 120720511171037. The reversal of 120720511171010 is 10171115027021.

It can be written as a sum of positive squares in 4 ways, for example, as 107514315325921 + 13206195845089 = 10368911^2 + 3634033^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77096009 + ... + 78646268.

Almost surely, 2^{120720511171010} is an apocalyptic number.

120720511171010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120720511171010 is a deficient number, since it is larger than the sum of its proper divisors (96579213693046).

120720511171010 is a wasteful number, since it uses less digits than its factorization.

120720511171010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155819797.

The product of its (nonzero) digits is 980, while the sum is 29.

Adding to 120720511171010 its reverse (10171115027021), we get a palindrome (130891626198031).

The spelling of 120720511171010 in words is "one hundred twenty trillion, seven hundred twenty billion, five hundred eleven million, one hundred seventy-one thousand, ten".