2011232230400 has 132 divisors (see below), whose sum is σ = 5034787526040. Its totient is φ = 796526592000.

The previous prime is 2011232230393. The next prime is 2011232230411. The reversal of 2011232230400 is 40322321102.

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 11 ways as a sum of consecutive naturals, for example, 2196671 + ... + 2974529.

Almost surely, 2^{2011232230400} is an apocalyptic number.

2011232230400 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 2011232230400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2517393763020).

2011232230400 is an abundant number, since it is smaller than the sum of its proper divisors (3023555295640).

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

2011232230400 is a wasteful number, since it uses less digits than its factorization.

2011232230400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777990 (or 777967 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 2011232230400 its reverse (40322321102), we get a palindrome (2051554551502).

The spelling of 2011232230400 in words is "two trillion, eleven billion, two hundred thirty-two million, two hundred thirty thousand, four hundred".