1113240402 has 64 divisors (see below), whose sum is σ = 2534837760. Its totient is φ = 361988352.

The previous prime is 1113240397. The next prime is 1113240407. The reversal of 1113240402 is 2040423111.

1113240402 is a `hidden beast` number, since 11 + 13 + 240 + 402 = 666.

It is an interprime number because it is at equal distance from previous prime (1113240397) and next prime (1113240407).

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 (1113240407) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1098448 + ... + 1099460.

It is an arithmetic number, because the mean of its divisors is an integer number (39606840).

Almost surely, 2^1113240402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1113240402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1267418880).

1113240402 is an abundant number, since it is smaller than the sum of its proper divisors (1421597358).

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

1113240402 is a wasteful number, since it uses less digits than its factorization.

1113240402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504 (or 1498 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1113240402 is about 33365.2574094671. The cubic root of 1113240402 is about 1036.4053666526.

Adding to 1113240402 its reverse (2040423111), we get a palindrome (3153663513).

The spelling of 1113240402 in words is "one billion, one hundred thirteen million, two hundred forty thousand, four hundred two".