1200112015155 has 8 divisors (see below), whose sum is σ = 1920179224272. Its totient is φ = 640059741408.

The previous prime is 1200112015139. The next prime is 1200112015211. The reversal of 1200112015155 is 5515102110021.

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

It is not a de Polignac number, because 1200112015155 - 2⁴ = 1200112015139 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40003733824 + ... + 40003733853.

It is an arithmetic number, because the mean of its divisors is an integer number (240022403034).

Almost surely, 2^{1200112015155} is an apocalyptic number.

1200112015155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1200112015155 is a deficient number, since it is larger than the sum of its proper divisors (720067209117).

1200112015155 is an equidigital number, since it uses as much as digits as its factorization.

1200112015155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80007467685.

The product of its (nonzero) digits is 500, while the sum is 24.

Adding to 1200112015155 its reverse (5515102110021), we get a palindrome (6715214125176).

The spelling of 1200112015155 in words is "one trillion, two hundred billion, one hundred twelve million, fifteen thousand, one hundred fifty-five".