11172333890 has 16 divisors (see below), whose sum is σ = 20653720632. Its totient is φ = 4348151424.

The previous prime is 11172333859. The next prime is 11172333911. The reversal of 11172333890 is 9833327111.

It can be written as a sum of positive squares in 4 ways, for example, as 10498256521 + 674077369 = 102461^2 + 25963^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15097379 + ... + 15098118.

Almost surely, 2^11172333890 is an apocalyptic number.

11172333890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11172333890 is a deficient number, since it is larger than the sum of its proper divisors (9481386742).

11172333890 is a wasteful number, since it uses less digits than its factorization.

11172333890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30195541.

The product of its (nonzero) digits is 27216, while the sum is 38.

The spelling of 11172333890 in words is "eleven billion, one hundred seventy-two million, three hundred thirty-three thousand, eight hundred ninety".