20103125 has 24 divisors (see below), whose sum is σ = 28748160. Its totient is φ = 13770000.

The previous prime is 20103113. The next prime is 20103137. The reversal of 20103125 is 52130102.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (20103113) and next prime (20103137).

It is not a de Polignac number, because 20103125 - 2¹⁸ = 19840981 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21416 + ... + 22334.

It is an arithmetic number, because the mean of its divisors is an integer number (1197840).

Almost surely, 2^20103125 is an apocalyptic number.

20103125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20103125 is a deficient number, since it is larger than the sum of its proper divisors (8645035).

20103125 is an frugal number, since it uses more digits than its factorization.

20103125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951 (or 931 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 20103125 is about 4483.6508561662. The cubic root of 20103125 is about 271.9075026100.

Adding to 20103125 its reverse (52130102), we get a palindrome (72233227).

The spelling of 20103125 in words is "twenty million, one hundred three thousand, one hundred twenty-five".