61010203 has 2 divisors, whose sum is σ = 61010204. Its totient is φ = 61010202.

The previous prime is 61010179. The next prime is 61010207. The reversal of 61010203 is 30201016.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61010203 is a prime.

It is not a weakly prime, because it can be changed into another prime (61010207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30505101 + 30505102.

It is an arithmetic number, because the mean of its divisors is an integer number (30505102).

Almost surely, 2^61010203 is an apocalyptic number.

61010203 is a deficient number, since it is larger than the sum of its proper divisors (1).

61010203 is an equidigital number, since it uses as much as digits as its factorization.

61010203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 61010203 is about 7810.9028287388. The cubic root of 61010203 is about 393.6716646718.

Adding to 61010203 its reverse (30201016), we get a palindrome (91211219).

The spelling of 61010203 in words is "sixty-one million, ten thousand, two hundred three".