1020241321 has 4 divisors (see below), whose sum is σ = 1112990544. Its totient is φ = 927492100.

The previous prime is 1020241307. The next prime is 1020241331. The reversal of 1020241321 is 1231420201.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1231420201 = 11 ⋅111947291.

It is a cyclic number.

It is not a de Polignac number, because 1020241321 - 2⁷ = 1020241193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020241295 and 1020241304.

It is not an unprimeable number, because it can be changed into a prime (1020241331) 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, 46374595 + ... + 46374616.

It is an arithmetic number, because the mean of its divisors is an integer number (278247636).

Almost surely, 2^1020241321 is an apocalyptic number.

1020241321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1020241321 is a deficient number, since it is larger than the sum of its proper divisors (92749223).

1020241321 is an equidigital number, since it uses as much as digits as its factorization.

1020241321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92749222.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1020241321 is about 31941.2166487127. The cubic root of 1020241321 is about 1006.7020886595.

Adding to 1020241321 its reverse (1231420201), we get a palindrome (2251661522).

The spelling of 1020241321 in words is "one billion, twenty million, two hundred forty-one thousand, three hundred twenty-one".