120255111251 has 8 divisors (see below), whose sum is σ = 131191442544. Its totient is φ = 109319454720.

The previous prime is 120255111203. The next prime is 120255111257. The reversal of 120255111251 is 152111552021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120255111251 - 2¹⁴ = 120255094867 is a prime.

It is a super-2 number, since 2×120255111251² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120255111251.

It is not an unprimeable number, because it can be changed into a prime (120255111257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248915 + ... + 549971.

It is an arithmetic number, because the mean of its divisors is an integer number (16398930318).

Almost surely, 2^120255111251 is an apocalyptic number.

120255111251 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120255111251 is a deficient number, since it is larger than the sum of its proper divisors (10936331293).

120255111251 is a wasteful number, since it uses less digits than its factorization.

120255111251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337381.

The product of its (nonzero) digits is 1000, while the sum is 26.

Adding to 120255111251 its reverse (152111552021), we get a palindrome (272366663272).

The spelling of 120255111251 in words is "one hundred twenty billion, two hundred fifty-five million, one hundred eleven thousand, two hundred fifty-one".