1211113314 has 48 divisors (see below), whose sum is σ = 2801148480. Its totient is φ = 377062560.

The previous prime is 1211113313. The next prime is 1211113331. The reversal of 1211113314 is 4133111121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1211113313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 657 + ... + 49220.

It is an arithmetic number, because the mean of its divisors is an integer number (58357260).

Almost surely, 2^1211113314 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1211113314, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1400574240).

1211113314 is an abundant number, since it is smaller than the sum of its proper divisors (1590035166).

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

1211113314 is a wasteful number, since it uses less digits than its factorization.

1211113314 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49975 (or 49972 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 1211113314 is about 34801.0533461273. The cubic root of 1211113314 is about 1065.9289547345.

Adding to 1211113314 its reverse (4133111121), we get a palindrome (5344224435).

It can be divided in two parts, 12111 and 13314, that added together give a triangular number (25425 = T₂₂₅).

The spelling of 1211113314 in words is "one billion, two hundred eleven million, one hundred thirteen thousand, three hundred fourteen".