2120155433 has 8 divisors (see below), whose sum is σ = 2413457856. Its totient is φ = 1843613200.

The previous prime is 2120155423. The next prime is 2120155487. The reversal of 2120155433 is 3345510212.

It is a happy number.

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

It is not a de Polignac number, because 2120155433 - 2⁴ = 2120155417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120155423) 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, 4189778 + ... + 4190283.

It is an arithmetic number, because the mean of its divisors is an integer number (301682232).

Almost surely, 2^2120155433 is an apocalyptic number.

2120155433 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2120155433 is a deficient number, since it is larger than the sum of its proper divisors (293302423).

2120155433 is a wasteful number, since it uses less digits than its factorization.

2120155433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8380095.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 2120155433 is about 46045.1455964687. The cubic root of 2120155433 is about 1284.6630522522.

Adding to 2120155433 its reverse (3345510212), we get a palindrome (5465665645).

The spelling of 2120155433 in words is "two billion, one hundred twenty million, one hundred fifty-five thousand, four hundred thirty-three".