1013103331421 has 4 divisors (see below), whose sum is σ = 1072697645052. Its totient is φ = 953509017792.

The previous prime is 1013103331417. The next prime is 1013103331469. The reversal of 1013103331421 is 1241333013101.

1013103331421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 509918815396 + 503184516025 = 714086^2 + 709355^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013103331421 - 2² = 1013103331417 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 (1013103334421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29797156790 + ... + 29797156823.

It is an arithmetic number, because the mean of its divisors is an integer number (268174411263).

Almost surely, 2^{1013103331421} is an apocalyptic number.

It is an amenable number.

1013103331421 is a deficient number, since it is larger than the sum of its proper divisors (59594313631).

1013103331421 is an equidigital number, since it uses as much as digits as its factorization.

1013103331421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59594313630.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1013103331421 its reverse (1241333013101), we get a palindrome (2254436344522).

The spelling of 1013103331421 in words is "one trillion, thirteen billion, one hundred three million, three hundred thirty-one thousand, four hundred twenty-one".