2003540021112 has 64 divisors (see below), whose sum is σ = 5781077337600. Its totient is φ = 566772278400.

The previous prime is 2003540021083. The next prime is 2003540021113. The reversal of 2003540021112 is 2111200453002.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003540021113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59021812 + ... + 59055747.

It is an arithmetic number, because the mean of its divisors is an integer number (90329333400).

Almost surely, 2^{2003540021112} is an apocalyptic number.

It is an amenable number.

2003540021112 is an abundant number, since it is smaller than the sum of its proper divisors (3777537316488).

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

2003540021112 is a wasteful number, since it uses less digits than its factorization.

2003540021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118077676 (or 118077672 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 2003540021112 its reverse (2111200453002), we get a palindrome (4114740474114).

The spelling of 2003540021112 in words is "two trillion, three billion, five hundred forty million, twenty-one thousand, one hundred twelve".