10203261 has 4 divisors (see below), whose sum is σ = 13604352. Its totient is φ = 6802172.

The previous prime is 10203257. The next prime is 10203269. The reversal of 10203261 is 16230201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10203261 - 2² = 10203257 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 10203261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10203269) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1700541 + ... + 1700546.

It is an arithmetic number, because the mean of its divisors is an integer number (3401088).

Almost surely, 2^10203261 is an apocalyptic number.

It is an amenable number.

10203261 is a deficient number, since it is larger than the sum of its proper divisors (3401091).

10203261 is an equidigital number, since it uses as much as digits as its factorization.

10203261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3401090.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 10203261 is about 3194.2543730893. The cubic root of 10203261 is about 216.8933976315.

Adding to 10203261 its reverse (16230201), we get a palindrome (26433462).

The spelling of 10203261 in words is "ten million, two hundred three thousand, two hundred sixty-one".