10203420 has 24 divisors (see below), whose sum is σ = 28569744. Its totient is φ = 2720896.

The previous prime is 10203397. The next prime is 10203443. The reversal of 10203420 is 2430201.

10203420 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (10203397) and next prime (10203443).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 10203396 and 10203405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84969 + ... + 85088.

It is an arithmetic number, because the mean of its divisors is an integer number (1190406).

Almost surely, 2^10203420 is an apocalyptic number.

10203420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10203420 is an abundant number, since it is smaller than the sum of its proper divisors (18366324).

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

10203420 is a wasteful number, since it uses less digits than its factorization.

10203420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170069 (or 170067 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 10203420 is about 3194.2792614297. The cubic root of 10203420 is about 216.8945242605.

Adding to 10203420 its reverse (2430201), we get a palindrome (12633621).

The spelling of 10203420 in words is "ten million, two hundred three thousand, four hundred twenty".