1021020123313 has 8 divisors (see below), whose sum is σ = 1086833959200. Its totient is φ = 956413880928.

The previous prime is 1021020123283. The next prime is 1021020123413. The reversal of 1021020123313 is 3133210201201.

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 1021020123313 - 2⁵ = 1021020123281 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021020123413) 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, 301896631 + ... + 301900012.

It is an arithmetic number, because the mean of its divisors is an integer number (135854244900).

Almost surely, 2^{1021020123313} is an apocalyptic number.

It is an amenable number.

1021020123313 is a deficient number, since it is larger than the sum of its proper divisors (65813835887).

1021020123313 is an equidigital number, since it uses as much as digits as its factorization.

1021020123313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 603796751.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1021020123313 its reverse (3133210201201), we get a palindrome (4154230324514).

The spelling of 1021020123313 in words is "one trillion, twenty-one billion, twenty million, one hundred twenty-three thousand, three hundred thirteen".