20010243200 has 96 divisors (see below), whose sum is σ = 49555654500. Its totient is φ = 7984005120.

The previous prime is 20010243173. The next prime is 20010243241. The reversal of 20010243200 is 234201002.

It can be written as a sum of positive squares in 6 ways, for example, as 13250772544 + 6759470656 = 115112^2 + 82216^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1301156 + ... + 1316444.

Almost surely, 2^20010243200 is an apocalyptic number.

20010243200 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 20010243200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24777827250).

20010243200 is an abundant number, since it is smaller than the sum of its proper divisors (29545411300).

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

20010243200 is a wasteful number, since it uses less digits than its factorization.

20010243200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15722 (or 15705 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 20010243200 its reverse (234201002), we get a palindrome (20244444202).

The spelling of 20010243200 in words is "twenty billion, ten million, two hundred forty-three thousand, two hundred".