103211025 has 12 divisors (see below), whose sum is σ = 170642352. Its totient is φ = 55045840.

The previous prime is 103210999. The next prime is 103211027. The reversal of 103211025 is 520112301.

It is not a de Polignac number, because 103211025 - 2¹¹ = 103208977 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 103210995 and 103211013.

It is not an unprimeable number, because it can be changed into a prime (103211027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 687999 + ... + 688148.

It is an arithmetic number, because the mean of its divisors is an integer number (14220196).

Almost surely, 2^103211025 is an apocalyptic number.

103211025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

103211025 is a deficient number, since it is larger than the sum of its proper divisors (67431327).

103211025 is a wasteful number, since it uses less digits than its factorization.

103211025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376160 (or 1376155 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 103211025 is about 10159.2827010572. The cubic root of 103211025 is about 469.0747225548.

Adding to 103211025 its reverse (520112301), we get a palindrome (623323326).

The spelling of 103211025 in words is "one hundred three million, two hundred eleven thousand, twenty-five".