3160121755261 has 4 divisors (see below), whose sum is σ = 3160410652000. Its totient is φ = 3159832858524.

The previous prime is 3160121755253. The next prime is 3160121755283. The reversal of 3160121755261 is 1625571210613.

It is a happy number.

3160121755261 is digitally balanced in base 3, 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3160121755261 - 2³ = 3160121755253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3160121755201) 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, 144431961 + ... + 144453838.

It is an arithmetic number, because the mean of its divisors is an integer number (790102663000).

Almost surely, 2^{3160121755261} is an apocalyptic number.

It is an amenable number.

3160121755261 is a deficient number, since it is larger than the sum of its proper divisors (288896739).

3160121755261 is a wasteful number, since it uses less digits than its factorization.

3160121755261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288896738.

The product of its (nonzero) digits is 75600, while the sum is 40.

Adding to 3160121755261 its reverse (1625571210613), we get a palindrome (4785692965874).

The spelling of 3160121755261 in words is "three trillion, one hundred sixty billion, one hundred twenty-one million, seven hundred fifty-five thousand, two hundred sixty-one".