1091939293930 has 8 divisors (see below), whose sum is σ = 1965490729092. Its totient is φ = 436775717568.

The previous prime is 1091939293927. The next prime is 1091939293961. The reversal of 1091939293930 is 393929391901.

It can be written as a sum of positive squares in 2 ways, for example, as 1091876615041 + 62678889 = 1044929^2 + 7917^2 .

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

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, 54596964687 + ... + 54596964706.

Almost surely, 2^{1091939293930} is an apocalyptic number.

1091939293930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1091939293930 is a deficient number, since it is larger than the sum of its proper divisors (873551435162).

1091939293930 is a wasteful number, since it uses less digits than its factorization.

1091939293930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109193929400.

The product of its (nonzero) digits is 3188646, while the sum is 58.

The spelling of 1091939293930 in words is "one trillion, ninety-one billion, nine hundred thirty-nine million, two hundred ninety-three thousand, nine hundred thirty".