100120510355 has 32 divisors (see below), whose sum is σ = 127845527040. Its totient is φ = 75058064640.

The previous prime is 100120510337. The next prime is 100120510361. The reversal of 100120510355 is 553015021001.

It is a happy number.

It is not a de Polignac number, because 100120510355 - 2⁸ = 100120510099 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100120510355.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3882434 + ... + 3908136.

It is an arithmetic number, because the mean of its divisors is an integer number (3995172720).

Almost surely, 2^100120510355 is an apocalyptic number.

100120510355 is a deficient number, since it is larger than the sum of its proper divisors (27725016685).

100120510355 is a wasteful number, since it uses less digits than its factorization.

100120510355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26171.

The product of its (nonzero) digits is 750, while the sum is 23.

Adding to 100120510355 its reverse (553015021001), we get a palindrome (653135531356).

The spelling of 100120510355 in words is "one hundred billion, one hundred twenty million, five hundred ten thousand, three hundred fifty-five".