1226115203 has 2 divisors, whose sum is σ = 1226115204. Its totient is φ = 1226115202.

The previous prime is 1226115199. The next prime is 1226115221. The reversal of 1226115203 is 3025116221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1226115203 - 2² = 1226115199 is a prime.

It is not a weakly prime, because it can be changed into another prime (1226117203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613057601 + 613057602.

It is an arithmetic number, because the mean of its divisors is an integer number (613057602).

Almost surely, 2^1226115203 is an apocalyptic number.

1226115203 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226115203 is an equidigital number, since it uses as much as digits as its factorization.

1226115203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1226115203 is about 35015.9278471955. The cubic root of 1226115203 is about 1070.3120768456.

The spelling of 1226115203 in words is "one billion, two hundred twenty-six million, one hundred fifteen thousand, two hundred three".