10120123155 has 16 divisors (see below), whose sum is σ = 16196431104. Its totient is φ = 5395987680.

The previous prime is 10120123151. The next prime is 10120123157. The reversal of 10120123155 is 55132102101.

10120123155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10120123155 - 2² = 10120123151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10120123151) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 27589 + ... + 144918.

It is an arithmetic number, because the mean of its divisors is an integer number (1012276944).

Almost surely, 2^10120123155 is an apocalyptic number.

10120123155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

10120123155 is a deficient number, since it is larger than the sum of its proper divisors (6076307949).

10120123155 is a wasteful number, since it uses less digits than its factorization.

10120123155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176426.

The product of its (nonzero) digits is 300, while the sum is 21.

Adding to 10120123155 its reverse (55132102101), we get a palindrome (65252225256).

The spelling of 10120123155 in words is "ten billion, one hundred twenty million, one hundred twenty-three thousand, one hundred fifty-five".