3102121009 has 4 divisors (see below), whose sum is σ = 3340745716. Its totient is φ = 2863496304.

The previous prime is 3102120991. The next prime is 3102121037. The reversal of 3102121009 is 9001212013.

3102121009 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 2124933409 + 977187600 = 46097^2 + 31260^2 .

It is a cyclic number.

It is not a de Polignac number, because 3102121009 - 2³¹ = 954637361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3102121069) 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, 119312334 + ... + 119312359.

It is an arithmetic number, because the mean of its divisors is an integer number (835186429).

Almost surely, 2^3102121009 is an apocalyptic number.

It is an amenable number.

3102121009 is a deficient number, since it is larger than the sum of its proper divisors (238624707).

3102121009 is a wasteful number, since it uses less digits than its factorization.

3102121009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238624706.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 3102121009 is about 55696.6875945060. The cubic root of 3102121009 is about 1458.4322022359.

The spelling of 3102121009 in words is "three billion, one hundred two million, one hundred twenty-one thousand, nine".