20310301650042 has 64 divisors (see below), whose sum is σ = 45234474428160. Its totient is φ = 6755044341312.

The previous prime is 20310301649993. The next prime is 20310301650047. The reversal of 20310301650042 is 24005610301302.

20310301650042 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 0 + 3 + 0 + 1 + 650 + 0 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 20310301649988 and 20310301650015.

It is not an unprimeable number, because it can be changed into a prime (20310301650047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 50825088 + ... + 51223140.

It is an arithmetic number, because the mean of its divisors is an integer number (706788662940).

Almost surely, 2^{20310301650042} is an apocalyptic number.

20310301650042 is an abundant number, since it is smaller than the sum of its proper divisors (24924172778118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20310301650042 is a wasteful number, since it uses less digits than its factorization.

20310301650042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400164 (or 400158 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 20310301650042 its reverse (24005610301302), we get a palindrome (44315911951344).

The spelling of 20310301650042 in words is "twenty trillion, three hundred ten billion, three hundred one million, six hundred fifty thousand, forty-two".