11203213021000 has 256 divisors, whose sum is σ = 35198461509120. Its totient is φ = 3223301760000.

The previous prime is 11203213020977. The next prime is 11203213021009. The reversal of 11203213021000 is 12031230211.

It is not an unprimeable number, because it can be changed into a prime (11203213021009) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4595011 + ... + 6597010.

It is an arithmetic number, because the mean of its divisors is an integer number (137493990270).

Almost surely, 2^{11203213021000} is an apocalyptic number.

11203213021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11203213021000 is an abundant number, since it is smaller than the sum of its proper divisors (23995248488120).

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

11203213021000 is a wasteful number, since it uses less digits than its factorization.

11203213021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11192073 (or 11192059 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11203213021000 its reverse (12031230211), we get a palindrome (11215244251211).

The spelling of 11203213021000 in words is "eleven trillion, two hundred three billion, two hundred thirteen million, twenty-one thousand".