10302313021 has 32 divisors (see below), whose sum is σ = 14646175488. Its totient is φ = 6974346240.

The previous prime is 10302312971. The next prime is 10302313027. The reversal of 10302313021 is 12031320301.

It is a cyclic number.

It is not a de Polignac number, because 10302313021 - 2¹⁵ = 10302280253 is a prime.

It is a super-2 number, since 2×10302313021² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10302312986 and 10302313004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10302313027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 285690 + ... + 319723.

It is an arithmetic number, because the mean of its divisors is an integer number (457692984).

Almost surely, 2^10302313021 is an apocalyptic number.

10302313021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10302313021 is a deficient number, since it is larger than the sum of its proper divisors (4343862467).

10302313021 is a wasteful number, since it uses less digits than its factorization.

10302313021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605461.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 10302313021 its reverse (12031320301), we get a palindrome (22333633322).

It can be divided in two parts, 10302 and 313021, that added together give a palindrome (323323).

The spelling of 10302313021 in words is "ten billion, three hundred two million, three hundred thirteen thousand, twenty-one".