2131420336 has 20 divisors (see below), whose sum is σ = 4141141200. Its totient is φ = 1062738752.

The previous prime is 2131420321. The next prime is 2131420363. The reversal of 2131420336 is 6330241312.

It is a self number, because there is not a number n which added to its sum of digits gives 2131420336.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179791 + ... + 191278.

It is an arithmetic number, because the mean of its divisors is an integer number (207057060).

Almost surely, 2^2131420336 is an apocalyptic number.

It is an amenable number.

2131420336 is a deficient number, since it is larger than the sum of its proper divisors (2009720864).

2131420336 is a wasteful number, since it uses less digits than its factorization.

2131420336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371436 (or 371430 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 2131420336 is about 46167.3080870003. The cubic root of 2131420336 is about 1286.9342771896.

Adding to 2131420336 its reverse (6330241312), we get a palindrome (8461661648).

The spelling of 2131420336 in words is "two billion, one hundred thirty-one million, four hundred twenty thousand, three hundred thirty-six".