3015121340 has 48 divisors (see below), whose sum is σ = 7894139904. Its totient is φ = 939777600.

The previous prime is 3015121321. The next prime is 3015121367. The reversal of 3015121340 is 431215103.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 977396 + ... + 980475.

It is an arithmetic number, because the mean of its divisors is an integer number (164461248).

Almost surely, 2^3015121340 is an apocalyptic number.

It is an amenable number.

3015121340 is an abundant number, since it is smaller than the sum of its proper divisors (4879018564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3015121340 is a wasteful number, since it uses less digits than its factorization.

3015121340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1957898 (or 1957896 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 3015121340 is about 54910.1205607855. The cubic root of 3015121340 is about 1444.6687043563.

Adding to 3015121340 its reverse (431215103), we get a palindrome (3446336443).

The spelling of 3015121340 in words is "three billion, fifteen million, one hundred twenty-one thousand, three hundred forty".