2123313031142 has 4 divisors (see below), whose sum is σ = 3184969546716. Its totient is φ = 1061656515570.

The previous prime is 2123313031127. The next prime is 2123313031183. The reversal of 2123313031142 is 2411303133212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530828257784 + ... + 530828257787.

It is an arithmetic number, because the mean of its divisors is an integer number (796242386679).

Almost surely, 2^{2123313031142} is an apocalyptic number.

2123313031142 is a deficient number, since it is larger than the sum of its proper divisors (1061656515574).

2123313031142 is a wasteful number, since it uses less digits than its factorization.

2123313031142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061656515573.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 2123313031142 its reverse (2411303133212), we get a palindrome (4534616164354).

The spelling of 2123313031142 in words is "two trillion, one hundred twenty-three billion, three hundred thirteen million, thirty-one thousand, one hundred forty-two".