10021307420 has 12 divisors (see below), whose sum is σ = 21044745624. Its totient is φ = 4008522960.

The previous prime is 10021307419. The next prime is 10021307459. The reversal of 10021307420 is 2470312001.

It is a super-2 number, since 2×10021307420² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 501065371 = 10021307420 / (1 + 0 + 0 + 2 + 1 + 3 + 0 + 7 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 10021307392 and 10021307401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 250532666 + ... + 250532705.

It is an arithmetic number, because the mean of its divisors is an integer number (1753728802).

Almost surely, 2^10021307420 is an apocalyptic number.

10021307420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10021307420 is an abundant number, since it is smaller than the sum of its proper divisors (11023438204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10021307420 is a wasteful number, since it uses less digits than its factorization.

10021307420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501065380 (or 501065378 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

Adding to 10021307420 its reverse (2470312001), we get a palindrome (12491619421).

The spelling of 10021307420 in words is "ten billion, twenty-one million, three hundred seven thousand, four hundred twenty".