203302312020 has 48 divisors (see below), whose sum is σ = 632496083520. Its totient is φ = 54213949728.

The previous prime is 203302311941. The next prime is 203302312099. The reversal of 203302312020 is 20213203302.

It is a happy number.

203302312020 is a `hidden beast` number, since 2 + 0 + 330 + 2 + 312 + 0 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (203302311941) and next prime (203302312099).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 203302311984 and 203302312002.

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, 188242342 + ... + 188243421.

It is an arithmetic number, because the mean of its divisors is an integer number (13177001740).

Almost surely, 2^203302312020 is an apocalyptic number.

203302312020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203302312020 is an abundant number, since it is smaller than the sum of its proper divisors (429193771500).

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

203302312020 is a wasteful number, since it uses less digits than its factorization.

203302312020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376485781 (or 376485773 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 203302312020 its reverse (20213203302), we get a palindrome (223515515322).

The spelling of 203302312020 in words is "two hundred three billion, three hundred two million, three hundred twelve thousand, twenty".