3111742741 has 4 divisors (see below), whose sum is σ = 3113416684. Its totient is φ = 3110068800.

The previous prime is 3111742723. The next prime is 3111742759. The reversal of 3111742741 is 1472471113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1472471113 = 239 ⋅6160967.

It is an interprime number because it is at equal distance from previous prime (3111742723) and next prime (3111742759).

It can be written as a sum of positive squares in 2 ways, for example, as 155102116 + 2956640625 = 12454^2 + 54375^2 .

It is a cyclic number.

It is not a de Polignac number, because 3111742741 - 2¹⁷ = 3111611669 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 (3111742141) 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, 834180 + ... + 837901.

It is an arithmetic number, because the mean of its divisors is an integer number (778354171).

Almost surely, 2^3111742741 is an apocalyptic number.

It is an amenable number.

3111742741 is a deficient number, since it is larger than the sum of its proper divisors (1673943).

3111742741 is a wasteful number, since it uses less digits than its factorization.

3111742741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673942.

The product of its digits is 4704, while the sum is 31.

The square root of 3111742741 is about 55782.9968807700. The cubic root of 3111742741 is about 1459.9385007247.

The spelling of 3111742741 in words is "three billion, one hundred eleven million, seven hundred forty-two thousand, seven hundred forty-one".