11333858981 has 16 divisors (see below), whose sum is σ = 11757533184. Its totient is φ = 10916607744.

The previous prime is 11333858959. The next prime is 11333859001. The reversal of 11333858981 is 18985833311.

It is a cyclic number.

It is not a de Polignac number, because 11333858981 - 2¹⁸ = 11333596837 is a prime.

It is a super-2 number, since 2×11333858981² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11333858941) 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, 6216236 + ... + 6218058.

It is an arithmetic number, because the mean of its divisors is an integer number (734845824).

Almost surely, 2^11333858981 is an apocalyptic number.

It is an amenable number.

11333858981 is a deficient number, since it is larger than the sum of its proper divisors (423674203).

11333858981 is a wasteful number, since it uses less digits than its factorization.

11333858981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3460.

The product of its digits is 622080, while the sum is 50.

The spelling of 11333858981 in words is "eleven billion, three hundred thirty-three million, eight hundred fifty-eight thousand, nine hundred eighty-one".