2012553003400 has 96 divisors (see below), whose sum is σ = 4695821769600. Its totient is φ = 802160985600.

The previous prime is 2012553003389. The next prime is 2012553003403. The reversal of 2012553003400 is 43003552102.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (2012553003403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 292901965 + ... + 292908835.

It is an arithmetic number, because the mean of its divisors is an integer number (48914810100).

Almost surely, 2^{2012553003400} is an apocalyptic number.

2012553003400 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 2012553003400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2347910884800).

2012553003400 is an abundant number, since it is smaller than the sum of its proper divisors (2683268766200).

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

2012553003400 is a wasteful number, since it uses less digits than its factorization.

2012553003400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11879 (or 11870 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 2012553003400 its reverse (43003552102), we get a palindrome (2055556555502).

The spelling of 2012553003400 in words is "two trillion, twelve billion, five hundred fifty-three million, three thousand, four hundred".