2120331540 has 48 divisors (see below), whose sum is σ = 5939825472. Its totient is φ = 565145856.

The previous prime is 2120331517. The next prime is 2120331553. The reversal of 2120331540 is 451330212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135187 + ... + 150053.

It is an arithmetic number, because the mean of its divisors is an integer number (123746364).

Almost surely, 2^2120331540 is an apocalyptic number.

2120331540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120331540 is an abundant number, since it is smaller than the sum of its proper divisors (3819493932).

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

2120331540 is a wasteful number, since it uses less digits than its factorization.

2120331540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17256 (or 17254 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2120331540 is about 46047.0578864709. The cubic root of 2120331540 is about 1284.6986206967.

Adding to 2120331540 its reverse (451330212), we get a palindrome (2571661752).

The spelling of 2120331540 in words is "two billion, one hundred twenty million, three hundred thirty-one thousand, five hundred forty".