2123142523354 has 4 divisors (see below), whose sum is σ = 3184713785034. Its totient is φ = 1061571261676.

The previous prime is 2123142523351. The next prime is 2123142523363. The reversal of 2123142523354 is 4533252413212.

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

It can be written as a sum of positive squares in only one way, i.e., 1783632367729 + 339510155625 = 1335527^2 + 582675^2 .

It is not an unprimeable number, because it can be changed into a prime (2123142523351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 530785630837 + ... + 530785630840.

Almost surely, 2^{2123142523354} is an apocalyptic number.

2123142523354 is a deficient number, since it is larger than the sum of its proper divisors (1061571261680).

2123142523354 is a wasteful number, since it uses less digits than its factorization.

2123142523354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061571261679.

The product of its digits is 172800, while the sum is 37.

Adding to 2123142523354 its reverse (4533252413212), we get a palindrome (6656394936566).

The spelling of 2123142523354 in words is "two trillion, one hundred twenty-three billion, one hundred forty-two million, five hundred twenty-three thousand, three hundred fifty-four".