3103942861 has 4 divisors (see below), whose sum is σ = 3105143424. Its totient is φ = 3102742300.

The previous prime is 3103942823. The next prime is 3103942889. The reversal of 3103942861 is 1682493013.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1682493013 = 3557 ⋅473009.

It is a cyclic number.

It is not a de Polignac number, because 3103942861 - 2¹⁵ = 3103910093 is a prime.

It is a super-2 number, since 2×3103942861² = 19268922568705730642, which contains 22 as substring.

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 3103942861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3103942811) 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, 596395 + ... + 601576.

It is an arithmetic number, because the mean of its divisors is an integer number (776285856).

Almost surely, 2^3103942861 is an apocalyptic number.

It is an amenable number.

3103942861 is a deficient number, since it is larger than the sum of its proper divisors (1200563).

3103942861 is a wasteful number, since it uses less digits than its factorization.

3103942861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200562.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 3103942861 is about 55713.0403137362. The cubic root of 3103942861 is about 1458.7176550634.

The spelling of 3103942861 in words is "three billion, one hundred three million, nine hundred forty-two thousand, eight hundred sixty-one".