1152121823 has 8 divisors (see below), whose sum is σ = 1176572016. Its totient is φ = 1127851200.

The previous prime is 1152121801. The next prime is 1152121837. The reversal of 1152121823 is 3281212511.

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

It is a cyclic number.

It is not a de Polignac number, because 1152121823 - 2⁶ = 1152121759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1152121792 and 1152121801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152121123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31886 + ... + 57627.

It is an arithmetic number, because the mean of its divisors is an integer number (147071502).

Almost surely, 2^1152121823 is an apocalyptic number.

1152121823 is a deficient number, since it is larger than the sum of its proper divisors (24450193).

1152121823 is an equidigital number, since it uses as much as digits as its factorization.

1152121823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89785.

The product of its digits is 960, while the sum is 26.

The square root of 1152121823 is about 33942.9200717911. The cubic root of 1152121823 is about 1048.3335085314. Note that the first 3 decimals are identical.

The spelling of 1152121823 in words is "one billion, one hundred fifty-two million, one hundred twenty-one thousand, eight hundred twenty-three".