1313221116 has 24 divisors (see below), whose sum is σ = 3066134400. Its totient is φ = 437461552.

The previous prime is 1313221093. The next prime is 1313221127. The reversal of 1313221116 is 6111223131.

1313221116 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1313221116³ (a number of 28 digits) contains 333 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1313221092 and 1313221101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14766 + ... + 53333.

It is an arithmetic number, because the mean of its divisors is an integer number (127755600).

Almost surely, 2^1313221116 is an apocalyptic number.

It is an amenable number.

1313221116 is an abundant number, since it is smaller than the sum of its proper divisors (1752913284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313221116 is a wasteful number, since it uses less digits than its factorization.

1313221116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69713 (or 69711 counting only the distinct ones).

The product of its digits is 216, while the sum is 21.

The square root of 1313221116 is about 36238.3928451580. The cubic root of 1313221116 is about 1095.0802651699.

Adding to 1313221116 its reverse (6111223131), we get a palindrome (7424444247).

The spelling of 1313221116 in words is "one billion, three hundred thirteen million, two hundred twenty-one thousand, one hundred sixteen".