1113233199981 has 16 divisors (see below), whose sum is σ = 1697657278464. Its totient is φ = 635645034864.

The previous prime is 1113233199973. The next prime is 1113233199989. The reversal of 1113233199981 is 1899913323111.

It is an interprime number because it is at equal distance from previous prime (1113233199973) and next prime (1113233199989).

It is not a de Polignac number, because 1113233199981 - 2³ = 1113233199973 is a prime.

It is a super-2 number, since 2×1113233199981² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113233199989) 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, 20314581 + ... + 20369306.

It is an arithmetic number, because the mean of its divisors is an integer number (106103579904).

Almost surely, 2^{1113233199981} is an apocalyptic number.

It is an amenable number.

1113233199981 is a deficient number, since it is larger than the sum of its proper divisors (584424078483).

1113233199981 is a wasteful number, since it uses less digits than its factorization.

1113233199981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40685200.

The product of its digits is 314928, while the sum is 51.

The spelling of 1113233199981 in words is "one trillion, one hundred thirteen billion, two hundred thirty-three million, one hundred ninety-nine thousand, nine hundred eighty-one".