10400303021 has 8 divisors (see below), whose sum is σ = 10625489280. Its totient is φ = 10175279488.

The previous prime is 10400303009. The next prime is 10400303033. The reversal of 10400303021 is 12030300401.

It is an interprime number because it is at equal distance from previous prime (10400303009) and next prime (10400303033).

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 10400303021 - 2¹⁰ = 10400301997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10400302987 and 10400303005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10400302021) 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, 93245 + ... + 171741.

It is an arithmetic number, because the mean of its divisors is an integer number (1328186160).

Almost surely, 2^10400303021 is an apocalyptic number.

It is an amenable number.

10400303021 is a deficient number, since it is larger than the sum of its proper divisors (225186259).

10400303021 is an equidigital number, since it uses as much as digits as its factorization.

10400303021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81363.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 10400303021 its reverse (12030300401), we get a palindrome (22430603422).

The spelling of 10400303021 in words is "ten billion, four hundred million, three hundred three thousand, twenty-one".