120300203051655 has 16 divisors (see below), whose sum is σ = 209978536235904. Its totient is φ = 58327371176480.

The previous prime is 120300203051647. The next prime is 120300203051759. The reversal of 120300203051655 is 556150302003021.

It is a happy number.

It is not a de Polignac number, because 120300203051655 - 2³ = 120300203051647 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 364546069689 + ... + 364546070018.

It is an arithmetic number, because the mean of its divisors is an integer number (13123658514744).

Almost surely, 2^{120300203051655} is an apocalyptic number.

120300203051655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120300203051655 is a deficient number, since it is larger than the sum of its proper divisors (89678333184249).

120300203051655 is a wasteful number, since it uses less digits than its factorization.

120300203051655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729092139726.

The product of its (nonzero) digits is 27000, while the sum is 33.

Adding to 120300203051655 its reverse (556150302003021), we get a palindrome (676450505054676).

The spelling of 120300203051655 in words is "one hundred twenty trillion, three hundred billion, two hundred three million, fifty-one thousand, six hundred fifty-five".