11211020203000 has 256 divisors, whose sum is σ = 28655552839680. Its totient is φ = 4092580800000.

The previous prime is 11211020202973. The next prime is 11211020203051. The reversal of 11211020203000 is 30202011211.

It is a super-2 number, since 2×11211020203000² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 50512270 + ... + 50733730.

It is an arithmetic number, because the mean of its divisors is an integer number (111935753280).

Almost surely, 2^{11211020203000} is an apocalyptic number.

11211020203000 is a gapful number since it is divisible by the number (10) 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 11211020203000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14327776419840).

11211020203000 is an abundant number, since it is smaller than the sum of its proper divisors (17444532636680).

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

11211020203000 is a wasteful number, since it uses less digits than its factorization.

11211020203000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221607 (or 221593 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 11211020203000 its reverse (30202011211), we get a palindrome (11241222214211).

The spelling of 11211020203000 in words is "eleven trillion, two hundred eleven billion, twenty million, two hundred three thousand".