1026202011613 has 4 divisors (see below), whose sum is σ = 1026840595680. Its totient is φ = 1025563427548.

The previous prime is 1026202011581. The next prime is 1026202011647. The reversal of 1026202011613 is 3161102026201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1026202011613 - 2⁵ = 1026202011581 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 (1026202011683) 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, 319289623 + ... + 319292836.

It is an arithmetic number, because the mean of its divisors is an integer number (256710148920).

Almost surely, 2^{1026202011613} is an apocalyptic number.

It is an amenable number.

1026202011613 is a deficient number, since it is larger than the sum of its proper divisors (638584067).

1026202011613 is an equidigital number, since it uses as much as digits as its factorization.

1026202011613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638584066.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 1026202011613 its reverse (3161102026201), we get a palindrome (4187304037814).

The spelling of 1026202011613 in words is "one trillion, twenty-six billion, two hundred two million, eleven thousand, six hundred thirteen".