11730021834 has 8 divisors (see below), whose sum is σ = 23460043680. Its totient is φ = 3910007276.

The previous prime is 11730021791. The next prime is 11730021859. The reversal of 11730021834 is 43812003711.

It is a sphenic number, since it is the product of 3 distinct primes.

11730021834 is an admirable number.

It is a super-2 number, since 2×11730021834² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 977501814 + ... + 977501825.

It is an arithmetic number, because the mean of its divisors is an integer number (2932505460).

Almost surely, 2^11730021834 is an apocalyptic number.

11730021834 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11730021834 is a wasteful number, since it uses less digits than its factorization.

11730021834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1955003644.

The product of its (nonzero) digits is 4032, while the sum is 30.

The spelling of 11730021834 in words is "eleven billion, seven hundred thirty million, twenty-one thousand, eight hundred thirty-four".