1331111201 has 8 divisors (see below), whose sum is σ = 1570343424. Its totient is φ = 1104147360.

The previous prime is 1331111183. The next prime is 1331111209. The reversal of 1331111201 is 1021111331.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1331111201 - 2¹⁰ = 1331110177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331111209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3066860 + ... + 3067293.

It is an arithmetic number, because the mean of its divisors is an integer number (196292928).

Almost surely, 2^1331111201 is an apocalyptic number.

It is an amenable number.

1331111201 is a deficient number, since it is larger than the sum of its proper divisors (239232223).

1331111201 is an equidigital number, since it uses as much as digits as its factorization.

1331111201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6134191.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1331111201 is about 36484.3966785803. The cubic root of 1331111201 is about 1100.0306330312.

Adding to 1331111201 its reverse (1021111331), we get a palindrome (2352222532).

The spelling of 1331111201 in words is "one billion, three hundred thirty-one million, one hundred eleven thousand, two hundred one".