1021152115013 has 8 divisors (see below), whose sum is σ = 1057486882680. Its totient is φ = 984892189120.

The previous prime is 1021152114979. The next prime is 1021152115031. The reversal of 1021152115013 is 3105112511201.

1021152115013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 236781506404 + 784370608609 = 486602^2 + 885647^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1021152115013 - 2¹⁸ = 1021151852869 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1021152115013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021152115063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18682670 + ... + 18737247.

It is an arithmetic number, because the mean of its divisors is an integer number (132185860335).

Almost surely, 2^{1021152115013} is an apocalyptic number.

It is an amenable number.

1021152115013 is a deficient number, since it is larger than the sum of its proper divisors (36334767667).

1021152115013 is an equidigital number, since it uses as much as digits as its factorization.

1021152115013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37420887.

The product of its (nonzero) digits is 300, while the sum is 23.

Adding to 1021152115013 its reverse (3105112511201), we get a palindrome (4126264626214).

The spelling of 1021152115013 in words is "one trillion, twenty-one billion, one hundred fifty-two million, one hundred fifteen thousand, thirteen".