2011240121004 has 48 divisors (see below), whose sum is σ = 5521051317600. Its totient is φ = 630977292288.

The previous prime is 2011240120997. The next prime is 2011240121027. The reversal of 2011240121004 is 4001210421102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 547721509 + ... + 547725180.

It is an arithmetic number, because the mean of its divisors is an integer number (115021902450).

Almost surely, 2^{2011240121004} is an apocalyptic number.

It is an amenable number.

2011240121004 is an abundant number, since it is smaller than the sum of its proper divisors (3509811196596).

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

2011240121004 is a wasteful number, since it uses less digits than its factorization.

2011240121004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095446719 (or 1095446711 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2011240121004 its reverse (4001210421102), we get a palindrome (6012450542106).

The spelling of 2011240121004 in words is "two trillion, eleven billion, two hundred forty million, one hundred twenty-one thousand, four".