2131404242 has 32 divisors (see below), whose sum is σ = 3624160320. Its totient is φ = 931228480.

The previous prime is 2131404239. The next prime is 2131404251. The reversal of 2131404242 is 2424041312.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137468 + ... + 152184.

It is an arithmetic number, because the mean of its divisors is an integer number (113255010).

Almost surely, 2^2131404242 is an apocalyptic number.

2131404242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2131404242 is a deficient number, since it is larger than the sum of its proper divisors (1492756078).

2131404242 is a wasteful number, since it uses less digits than its factorization.

2131404242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14986.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 2131404242 is about 46167.1337858438. The cubic root of 2131404242 is about 1286.9310380393.

Adding to 2131404242 its reverse (2424041312), we get a palindrome (4555445554).

The spelling of 2131404242 in words is "two billion, one hundred thirty-one million, four hundred four thousand, two hundred forty-two".