1331213101 has 16 divisors (see below), whose sum is σ = 1444379904. Its totient is φ = 1222101504.

The previous prime is 1331213089. The next prime is 1331213153. The reversal of 1331213101 is 1013121331.

It is a cyclic number.

It is not a de Polignac number, because 1331213101 - 2¹⁷ = 1331082029 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 (1331213171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247426 + ... + 252748.

It is an arithmetic number, because the mean of its divisors is an integer number (90273744).

Almost surely, 2^1331213101 is an apocalyptic number.

It is an amenable number.

1331213101 is a deficient number, since it is larger than the sum of its proper divisors (113166803).

1331213101 is a wasteful number, since it uses less digits than its factorization.

1331213101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5700.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1331213101 is about 36485.7931392480. The cubic root of 1331213101 is about 1100.0587023769.

Adding to 1331213101 its reverse (1013121331), we get a palindrome (2344334432).

The spelling of 1331213101 in words is "one billion, three hundred thirty-one million, two hundred thirteen thousand, one hundred one".