3102120240 has 40 divisors (see below), whose sum is σ = 9616573488. Its totient is φ = 827232000.

The previous prime is 3102120223. The next prime is 3102120247. The reversal of 3102120240 is 420212013.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (3102120247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6462511 + ... + 6462990.

Almost surely, 2^3102120240 is an apocalyptic number.

3102120240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3102120240 is an abundant number, since it is smaller than the sum of its proper divisors (6514453248).

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

3102120240 is a wasteful number, since it uses less digits than its factorization.

3102120240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12925517 (or 12925511 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 3102120240 is about 55696.6806910430. The cubic root of 3102120240 is about 1458.4320817233.

Adding to 3102120240 its reverse (420212013), we get a palindrome (3522332253).

The spelling of 3102120240 in words is "three billion, one hundred two million, one hundred twenty thousand, two hundred forty".