2120123433242 has 8 divisors (see below), whose sum is σ = 3191920151232. Its totient is φ = 1056150049500.

The previous prime is 2120123433223. The next prime is 2120123433251. The reversal of 2120123433242 is 2423343210212.

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, 1955832884 + ... + 1955833967.

It is an arithmetic number, because the mean of its divisors is an integer number (398990018904).

Almost surely, 2^{2120123433242} is an apocalyptic number.

2120123433242 is a deficient number, since it is larger than the sum of its proper divisors (1071796717990).

2120123433242 is a wasteful number, since it uses less digits than its factorization.

2120123433242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3911667124.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 2120123433242 its reverse (2423343210212), we get a palindrome (4543466643454).

The spelling of 2120123433242 in words is "two trillion, one hundred twenty billion, one hundred twenty-three million, four hundred thirty-three thousand, two hundred forty-two".