3121045106 has 4 divisors (see below), whose sum is σ = 4681567662. Its totient is φ = 1560522552.

The previous prime is 3121045097. The next prime is 3121045129. The reversal of 3121045106 is 6015401213.

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

It can be written as a sum of positive squares in only one way, i.e., 3104161225 + 16883881 = 55715^2 + 4109^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 780261275 + ... + 780261278.

Almost surely, 2^3121045106 is an apocalyptic number.

3121045106 is a deficient number, since it is larger than the sum of its proper divisors (1560522556).

3121045106 is a wasteful number, since it uses less digits than its factorization.

3121045106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560522555.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 3121045106 is about 55866.3145911738. The cubic root of 3121045106 is about 1461.3918524636.

Adding to 3121045106 its reverse (6015401213), we get a palindrome (9136446319).

The spelling of 3121045106 in words is "three billion, one hundred twenty-one million, forty-five thousand, one hundred six".