20353403000 has 192 divisors, whose sum is σ = 57826716480. Its totient is φ = 6567168000.

The previous prime is 20353402999. The next prime is 20353403011. The reversal of 20353403000 is 30435302.

It is a super-2 number, since 2×20353403000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2017970 + ... + 2028030.

It is an arithmetic number, because the mean of its divisors is an integer number (301180815).

Almost surely, 2^20353403000 is an apocalyptic number.

20353403000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20353403000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28913358240).

20353403000 is an abundant number, since it is smaller than the sum of its proper divisors (37473313480).

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

20353403000 is a wasteful number, since it uses less digits than its factorization.

20353403000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10123 (or 10092 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 20.

Adding to 20353403000 its reverse (30435302), we get a palindrome (20383838302).

The spelling of 20353403000 in words is "twenty billion, three hundred fifty-three million, four hundred three thousand".