20312552103020 has 24 divisors (see below), whose sum is σ = 45165557029824. Its totient is φ = 7647078438656.

The previous prime is 20312552102987. The next prime is 20312552103029. The reversal of 20312552103020 is 2030125521302.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20312552103029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29871399812 + ... + 29871400491.

It is an arithmetic number, because the mean of its divisors is an integer number (1881898209576).

Almost surely, 2^{20312552103020} is an apocalyptic number.

20312552103020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20312552103020 is an abundant number, since it is smaller than the sum of its proper divisors (24853004926804).

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

20312552103020 is a wasteful number, since it uses less digits than its factorization.

20312552103020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59742800329 (or 59742800327 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 20312552103020 its reverse (2030125521302), we get a palindrome (22342677624322).

The spelling of 20312552103020 in words is "twenty trillion, three hundred twelve billion, five hundred fifty-two million, one hundred three thousand, twenty".