20303343100 has 36 divisors (see below), whose sum is σ = 46649920464. Its totient is φ = 7643610880.

The previous prime is 20303343079. The next prime is 20303343103. The reversal of 20303343100 is 134330302.

It is a super-2 number, since 2×20303343100² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20303343103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5969872 + ... + 5973271.

It is an arithmetic number, because the mean of its divisors is an integer number (1295831124).

Almost surely, 2^20303343100 is an apocalyptic number.

20303343100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20303343100 is an abundant number, since it is smaller than the sum of its proper divisors (26346577364).

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

20303343100 is a wasteful number, since it uses less digits than its factorization.

20303343100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11943174 (or 11943167 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 20303343100 its reverse (134330302), we get a palindrome (20437673402).

The spelling of 20303343100 in words is "twenty billion, three hundred three million, three hundred forty-three thousand, one hundred".