1313221101 has 16 divisors (see below), whose sum is σ = 1808578560. Its totient is φ = 846707760.

The previous prime is 1313221093. The next prime is 1313221127. The reversal of 1313221101 is 1011223131.

It is a happy number.

It is not a de Polignac number, because 1313221101 - 2³ = 1313221093 is a prime.

It is a super-2 number, since 2×1313221101² = 3449099320223304402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313222101) 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, 190330 + ... + 197108.

It is an arithmetic number, because the mean of its divisors is an integer number (113036160).

Almost surely, 2^1313221101 is an apocalyptic number.

It is an amenable number.

1313221101 is a deficient number, since it is larger than the sum of its proper divisors (495357459).

1313221101 is a wasteful number, since it uses less digits than its factorization.

1313221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8896.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1313221101 is about 36238.3926381952. The cubic root of 1313221101 is about 1095.0802610004.

Adding to 1313221101 its reverse (1011223131), we get a palindrome (2324444232).

The spelling of 1313221101 in words is "one billion, three hundred thirteen million, two hundred twenty-one thousand, one hundred one".