2142123343331 has 8 divisors (see below), whose sum is σ = 2143214218800. Its totient is φ = 2141032693408.

The previous prime is 2142123343309. The next prime is 2142123343343. The reversal of 2142123343331 is 1333433212412.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2142123343331 is a prime.

It is a super-2 number, since 2×2142123343331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2142123343531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20884985 + ... + 20987301.

It is an arithmetic number, because the mean of its divisors is an integer number (267901777350).

Almost surely, 2^{2142123343331} is an apocalyptic number.

2142123343331 is a deficient number, since it is larger than the sum of its proper divisors (1090875469).

2142123343331 is a wasteful number, since it uses less digits than its factorization.

2142123343331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112773.

The product of its digits is 31104, while the sum is 32.

Adding to 2142123343331 its reverse (1333433212412), we get a palindrome (3475556555743).

The spelling of 2142123343331 in words is "two trillion, one hundred forty-two billion, one hundred twenty-three million, three hundred forty-three thousand, three hundred thirty-one".