1113221240 has 32 divisors (see below), whose sum is σ = 2508107760. Its totient is φ = 444691200.

The previous prime is 1113221237. The next prime is 1113221243. The reversal of 1113221240 is 421223111.

It is an interprime number because it is at equal distance from previous prime (1113221237) and next prime (1113221243).

It is a super-3 number, since 3×1113221240³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113221243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12155 + ... + 48725.

Almost surely, 2^1113221240 is an apocalyptic number.

1113221240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113221240 is an abundant number, since it is smaller than the sum of its proper divisors (1394886520).

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

1113221240 is a wasteful number, since it uses less digits than its factorization.

1113221240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37343 (or 37339 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1113221240 is about 33364.9702532461. The cubic root of 1113221240 is about 1036.3994201342.

Adding to 1113221240 its reverse (421223111), we get a palindrome (1534444351).

The spelling of 1113221240 in words is "one billion, one hundred thirteen million, two hundred twenty-one thousand, two hundred forty".