1201506303 has 16 divisors (see below), whose sum is σ = 1615653216. Its totient is φ = 794196480.

The previous prime is 1201506283. The next prime is 1201506323. The reversal of 1201506303 is 3036051021.

It is an interprime number because it is at equal distance from previous prime (1201506283) and next prime (1201506323).

It is not a de Polignac number, because 1201506303 - 2²¹ = 1199409151 is a prime.

It is a super-2 number, since 2×1201506303² = 2887234792297455618, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1201506303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201506323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 541825 + ... + 544037.

It is an arithmetic number, because the mean of its divisors is an integer number (100978326).

Almost surely, 2^1201506303 is an apocalyptic number.

1201506303 is a deficient number, since it is larger than the sum of its proper divisors (414146913).

1201506303 is a wasteful number, since it uses less digits than its factorization.

1201506303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3674.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1201506303 is about 34662.7509439167. The cubic root of 1201506303 is about 1063.1030182111.

Adding to 1201506303 its reverse (3036051021), we get a palindrome (4237557324).

The spelling of 1201506303 in words is "one billion, two hundred one million, five hundred six thousand, three hundred three".