10302103021 has 4 divisors (see below), whose sum is σ = 11773832032. Its totient is φ = 8830374012.

The previous prime is 10302102991. The next prime is 10302103033. The reversal of 10302103021 is 12030120301.

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: 12030120301 = 21121 ⋅569581.

It is a cyclic number.

It is not a de Polignac number, because 10302103021 - 2⁷ = 10302102893 is a prime.

It is a super-2 number, since 2×10302103021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10302102992 and 10302103010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10302103051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 735864495 + ... + 735864508.

It is an arithmetic number, because the mean of its divisors is an integer number (2943458008).

Almost surely, 2^10302103021 is an apocalyptic number.

It is an amenable number.

10302103021 is a deficient number, since it is larger than the sum of its proper divisors (1471729011).

10302103021 is an equidigital number, since it uses as much as digits as its factorization.

10302103021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471729010.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 10302103021 its reverse (12030120301), we get a palindrome (22332223322).

The spelling of 10302103021 in words is "ten billion, three hundred two million, one hundred three thousand, twenty-one".