1003211842261 has 16 divisors (see below), whose sum is σ = 1040941440000. Its totient is φ = 965819289600.

The previous prime is 1003211842207. The next prime is 1003211842267. The reversal of 1003211842261 is 1622481123001.

1003211842261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1003211842261 - 2⁷ = 1003211842133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003211842267) 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, 71238741 + ... + 71252821.

It is an arithmetic number, because the mean of its divisors is an integer number (65058840000).

Almost surely, 2^{1003211842261} is an apocalyptic number.

It is an amenable number.

1003211842261 is a deficient number, since it is larger than the sum of its proper divisors (37729597739).

1003211842261 is a wasteful number, since it uses less digits than its factorization.

1003211842261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25860.

The product of its (nonzero) digits is 4608, while the sum is 31.

Adding to 1003211842261 its reverse (1622481123001), we get a palindrome (2625692965262).

The spelling of 1003211842261 in words is "one trillion, three billion, two hundred eleven million, eight hundred forty-two thousand, two hundred sixty-one".