3870051121 has 4 divisors (see below), whose sum is σ = 3933494644. Its totient is φ = 3806607600.

The previous prime is 3870051091. The next prime is 3870051137. The reversal of 3870051121 is 1211500783.

3870051121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78570496 + 3791480625 = 8864^2 + 61575^2 .

It is a cyclic number.

It is not a de Polignac number, because 3870051121 - 2⁷ = 3870050993 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 3870051121.

It is not an unprimeable number, because it can be changed into a prime (3870051161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31721670 + ... + 31721791.

It is an arithmetic number, because the mean of its divisors is an integer number (983373661).

Almost surely, 2^3870051121 is an apocalyptic number.

It is an amenable number.

3870051121 is a deficient number, since it is larger than the sum of its proper divisors (63443523).

3870051121 is an equidigital number, since it uses as much as digits as its factorization.

3870051121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63443522.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 3870051121 is about 62209.7349375482. The cubic root of 3870051121 is about 1570.0213827263.

The spelling of 3870051121 in words is "three billion, eight hundred seventy million, fifty-one thousand, one hundred twenty-one".