2131100042 has 8 divisors (see below), whose sum is σ = 3384688356. Its totient is φ = 1002870592.

The previous prime is 2131099969. The next prime is 2131100057. The reversal of 2131100042 is 2400011312.

It can be written as a sum of positive squares in 2 ways, for example, as 1830042841 + 301057201 = 42779^2 + 17351^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31339673 + ... + 31339740.

Almost surely, 2^2131100042 is an apocalyptic number.

2131100042 is a deficient number, since it is larger than the sum of its proper divisors (1253588314).

2131100042 is a wasteful number, since it uses less digits than its factorization.

2131100042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62679432.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2131100042 is about 46163.8391167806. The cubic root of 2131100042 is about 1286.8698103222.

Adding to 2131100042 its reverse (2400011312), we get a palindrome (4531111354).

The spelling of 2131100042 in words is "two billion, one hundred thirty-one million, one hundred thousand, forty-two".