1201220103 has 32 divisors (see below), whose sum is σ = 1702010880. Its totient is φ = 752000480.

The previous prime is 1201220087. The next prime is 1201220129. The reversal of 1201220103 is 3010221021.

It is a cyclic number.

It is not a de Polignac number, because 1201220103 - 2⁴ = 1201220087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201220203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1758400 + ... + 1759082.

It is an arithmetic number, because the mean of its divisors is an integer number (53187840).

Almost surely, 2^1201220103 is an apocalyptic number.

1201220103 is a deficient number, since it is larger than the sum of its proper divisors (500790777).

1201220103 is a wasteful number, since it uses less digits than its factorization.

1201220103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1201220103 is about 34658.6223471159. The cubic root of 1201220103 is about 1063.0186007748.

Adding to 1201220103 its reverse (3010221021), we get a palindrome (4211441124).

The spelling of 1201220103 in words is "one billion, two hundred one million, two hundred twenty thousand, one hundred three".