2001121342 has 8 divisors (see below), whose sum is σ = 3274562232. Its totient is φ = 909600600.

The previous prime is 2001121319. The next prime is 2001121379. The reversal of 2001121342 is 2431211002.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45480009 + ... + 45480052.

It is an arithmetic number, because the mean of its divisors is an integer number (409320279).

Almost surely, 2^2001121342 is an apocalyptic number.

2001121342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2001121342 is a deficient number, since it is larger than the sum of its proper divisors (1273440890).

2001121342 is a wasteful number, since it uses less digits than its factorization.

2001121342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90960074.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2001121342 is about 44733.8947778974. The cubic root of 2001121342 is about 1260.1564729670.

Adding to 2001121342 its reverse (2431211002), we get a palindrome (4432332344).

The spelling of 2001121342 in words is "two billion, one million, one hundred twenty-one thousand, three hundred forty-two".