1201330005 has 16 divisors (see below), whose sum is σ = 2023293120. Its totient is φ = 606987648.

The previous prime is 1201330003. The next prime is 1201330019. The reversal of 1201330005 is 5000331021.

It is a happy number.

It is not a de Polignac number, because 1201330005 - 2¹ = 1201330003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201330003) 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, 2107312 + ... + 2107881.

It is an arithmetic number, because the mean of its divisors is an integer number (126455820).

Almost surely, 2^1201330005 is an apocalyptic number.

1201330005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1201330005 is a deficient number, since it is larger than the sum of its proper divisors (821963115).

1201330005 is a wasteful number, since it uses less digits than its factorization.

1201330005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4215220.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 1201330005 is about 34660.2078037625. The cubic root of 1201330005 is about 1063.0510190100.

Adding to 1201330005 its reverse (5000331021), we get a palindrome (6201661026).

The spelling of 1201330005 in words is "one billion, two hundred one million, three hundred thirty thousand, five".