1111225203 has 64 divisors (see below), whose sum is σ = 1902182400. Its totient is φ = 634068000.

The previous prime is 1111225201. The next prime is 1111225249. The reversal of 1111225203 is 3025221111.

It is not a de Polignac number, because 1111225203 - 2¹ = 1111225201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1111225201) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1077298 + ... + 1078328.

It is an arithmetic number, because the mean of its divisors is an integer number (29721600).

Almost surely, 2^1111225203 is an apocalyptic number.

1111225203 is a deficient number, since it is larger than the sum of its proper divisors (790957197).

1111225203 is a wasteful number, since it uses less digits than its factorization.

1111225203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261 (or 1255 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1111225203 is about 33335.0446677367. The cubic root of 1111225203 is about 1035.7796184405.

Adding to 1111225203 its reverse (3025221111), we get a palindrome (4136446314).

It can be divided in two parts, 11112 and 25203, that added together give a triangular number (36315 = T₂₆₉).

The spelling of 1111225203 in words is "one billion, one hundred eleven million, two hundred twenty-five thousand, two hundred three".