2003240556461 has 8 divisors (see below), whose sum is σ = 2051792334240. Its totient is φ = 1955237386608.

The previous prime is 2003240556437. The next prime is 2003240556463. The reversal of 2003240556461 is 1646550423002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2003240556461 - 2¹⁸ = 2003240294317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2003240556463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137144591 + ... + 137159196.

It is an arithmetic number, because the mean of its divisors is an integer number (256474041780).

Almost surely, 2^{2003240556461} is an apocalyptic number.

It is an amenable number.

2003240556461 is a deficient number, since it is larger than the sum of its proper divisors (48551777779).

2003240556461 is a wasteful number, since it uses less digits than its factorization.

2003240556461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274303963.

The product of its (nonzero) digits is 172800, while the sum is 38.

Adding to 2003240556461 its reverse (1646550423002), we get a palindrome (3649790979463).

The spelling of 2003240556461 in words is "two trillion, three billion, two hundred forty million, five hundred fifty-six thousand, four hundred sixty-one".