1023033313021 has 8 divisors (see below), whose sum is σ = 1025704662840. Its totient is φ = 1020362176512.

The previous prime is 1023033312979. The next prime is 1023033313031. The reversal of 1023033313021 is 1203133303201.

It can be written as a sum of positive squares in 4 ways, for example, as 129034697796 + 893998615225 = 359214^2 + 945515^2 .

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 1023033313021 - 2¹⁵ = 1023033280253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1023033312983 and 1023033313001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023033313031) 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, 15228121 + ... + 15295153.

It is an arithmetic number, because the mean of its divisors is an integer number (128213082855).

Almost surely, 2^{1023033313021} is an apocalyptic number.

It is an amenable number.

1023033313021 is a deficient number, since it is larger than the sum of its proper divisors (2671349819).

1023033313021 is an equidigital number, since it uses as much as digits as its factorization.

1023033313021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106655.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 1023033313021 its reverse (1203133303201), we get a palindrome (2226166616222).

The spelling of 1023033313021 in words is "one trillion, twenty-three billion, thirty-three million, three hundred thirteen thousand, twenty-one".