20312552042 has 8 divisors (see below), whose sum is σ = 30469670532. Its totient is φ = 10155995200.

The previous prime is 20312552023. The next prime is 20312552083. The reversal of 20312552042 is 24025521302.

It can be written as a sum of positive squares in 2 ways, for example, as 19774265641 + 538286401 = 140621^2 + 23201^2 .

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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33809 + ... + 204372.

Almost surely, 2^20312552042 is an apocalyptic number.

20312552042 is a deficient number, since it is larger than the sum of its proper divisors (10157118490).

20312552042 is a wasteful number, since it uses less digits than its factorization.

20312552042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280824.

The product of its (nonzero) digits is 4800, while the sum is 26.

The spelling of 20312552042 in words is "twenty billion, three hundred twelve million, five hundred fifty-two thousand, forty-two".