1021311044413 has 16 divisors (see below), whose sum is σ = 1120712785920. Its totient is φ = 923008121200.

The previous prime is 1021311044407. The next prime is 1021311044419. The reversal of 1021311044413 is 3144401131201.

It is an interprime number because it is at equal distance from previous prime (1021311044407) and next prime (1021311044419).

It is not a de Polignac number, because 1021311044413 - 2⁵ = 1021311044381 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 (1021311044419) 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, 3119556 + ... + 3431362.

It is an arithmetic number, because the mean of its divisors is an integer number (70044549120).

Almost surely, 2^{1021311044413} is an apocalyptic number.

It is an amenable number.

1021311044413 is a deficient number, since it is larger than the sum of its proper divisors (99401741507).

1021311044413 is a wasteful number, since it uses less digits than its factorization.

1021311044413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313568.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 1021311044413 its reverse (3144401131201), we get a palindrome (4165712175614).

The spelling of 1021311044413 in words is "one trillion, twenty-one billion, three hundred eleven million, forty-four thousand, four hundred thirteen".