1013212121313 has 16 divisors (see below), whose sum is σ = 1543972492160. Its totient is φ = 578967025536.

The previous prime is 1013212121309. The next prime is 1013212121333. The reversal of 1013212121313 is 3131212123101.

It is not a de Polignac number, because 1013212121313 - 2² = 1013212121309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1013212121313.

It is not an unprimeable number, because it can be changed into a prime (1013212121333) 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, 693603 + ... + 1583511.

It is an arithmetic number, because the mean of its divisors is an integer number (96498280760).

Almost surely, 2^{1013212121313} is an apocalyptic number.

It is an amenable number.

1013212121313 is a deficient number, since it is larger than the sum of its proper divisors (530760370847).

1013212121313 is an equidigital number, since it uses as much as digits as its factorization.

1013212121313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944136.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1013212121313 its reverse (3131212123101), we get a palindrome (4144424244414).

The spelling of 1013212121313 in words is "one trillion, thirteen billion, two hundred twelve million, one hundred twenty-one thousand, three hundred thirteen".