120851550271 has 16 divisors (see below), whose sum is σ = 128454488800. Its totient is φ = 113374080000.

The previous prime is 120851550247. The next prime is 120851550283. The reversal of 120851550271 is 172055158021.

120851550271 = T₂₈₃₈₄₃ + T₂₈₃₈₄₄ + T₂₈₃₈₄₅.

It is a 10-Lehmer number, since φ(120851550271) divides (120851550271-1)¹⁰.

It is a cyclic number.

It is not a de Polignac number, because 120851550271 - 2²⁷ = 120717332543 is a prime.

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 120851550271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120851550671) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3713671 + ... + 3746071.

It is an arithmetic number, because the mean of its divisors is an integer number (8028405550).

Almost surely, 2^120851550271 is an apocalyptic number.

120851550271 is the 283845-th centered triangular number.

120851550271 is a deficient number, since it is larger than the sum of its proper divisors (7602938529).

120851550271 is a wasteful number, since it uses less digits than its factorization.

120851550271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34330.

The product of its (nonzero) digits is 28000, while the sum is 37.

The spelling of 120851550271 in words is "one hundred twenty billion, eight hundred fifty-one million, five hundred fifty thousand, two hundred seventy-one".