203021123232020 has 48 divisors (see below), whose sum is σ = 426680360542800. Its totient is φ = 81144461352960.

The previous prime is 203021123232017. The next prime is 203021123232107. The reversal of 203021123232020 is 20232321120302.

It can be written as a sum of positive squares in 8 ways, for example, as 594188138896 + 202426935093124 = 770836^2 + 14227682^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265279676 + ... + 266043884.

It is an arithmetic number, because the mean of its divisors is an integer number (8889174177975).

Almost surely, 2^{203021123232020} is an apocalyptic number.

203021123232020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203021123232020 is an abundant number, since it is smaller than the sum of its proper divisors (223659237310780).

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

203021123232020 is a wasteful number, since it uses less digits than its factorization.

203021123232020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774668 (or 774666 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 203021123232020 its reverse (20232321120302), we get a palindrome (223253444352322).

The spelling of 203021123232020 in words is "two hundred three trillion, twenty-one billion, one hundred twenty-three million, two hundred thirty-two thousand, twenty".