20310124042 has 16 divisors (see below), whose sum is σ = 32951940840. Its totient is φ = 9332966592.

The previous prime is 20310124019. The next prime is 20310124057. The reversal of 20310124042 is 24042101302.

It can be written as a sum of positive squares in 4 ways, for example, as 19894820401 + 415303641 = 141049^2 + 20379^2 .

It is a super-2 number, since 2×20310124042² (a number of 21 digits) contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1699633 + ... + 1711540.

Almost surely, 2^20310124042 is an apocalyptic number.

20310124042 is a deficient number, since it is larger than the sum of its proper divisors (12641816798).

20310124042 is a wasteful number, since it uses less digits than its factorization.

20310124042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3411417.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20310124042 its reverse (24042101302), we get a palindrome (44352225344).

The spelling of 20310124042 in words is "twenty billion, three hundred ten million, one hundred twenty-four thousand, forty-two".