10245245021 has 24 divisors (see below), whose sum is σ = 11374580736. Its totient is φ = 9151619840.

The previous prime is 10245244979. The next prime is 10245245063. The reversal of 10245245021 is 12054254201.

It is an interprime number because it is at equal distance from previous prime (10245244979) and next prime (10245245063).

It is not a de Polignac number, because 10245245021 - 2²² = 10241050717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10245245081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26749796 + ... + 26750178.

It is an arithmetic number, because the mean of its divisors is an integer number (473940864).

Almost surely, 2^10245245021 is an apocalyptic number.

10245245021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10245245021 is a deficient number, since it is larger than the sum of its proper divisors (1129335715).

10245245021 is an equidigital number, since it uses as much as digits as its factorization.

10245245021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913 (or 830 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 10245245021 its reverse (12054254201), we get a palindrome (22299499222).

The spelling of 10245245021 in words is "ten billion, two hundred forty-five million, two hundred forty-five thousand, twenty-one".