1201345103 has 12 divisors (see below), whose sum is σ = 1479688992. Its totient is φ = 969151680.

The previous prime is 1201345081. The next prime is 1201345109. The reversal of 1201345103 is 3015431021.

It is not a de Polignac number, because 1201345103 - 2¹⁶ = 1201279567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201345109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 720263 + ... + 721928.

It is an arithmetic number, because the mean of its divisors is an integer number (123307416).

Almost surely, 2^1201345103 is an apocalyptic number.

1201345103 is a deficient number, since it is larger than the sum of its proper divisors (278343889).

1201345103 is a wasteful number, since it uses less digits than its factorization.

1201345103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442222 (or 1442215 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1201345103 is about 34660.4256032727. The cubic root of 1201345103 is about 1063.0554723733.

Adding to 1201345103 its reverse (3015431021), we get a palindrome (4216776124).

The spelling of 1201345103 in words is "one billion, two hundred one million, three hundred forty-five thousand, one hundred three".