2123130622442 has 8 divisors (see below), whose sum is σ = 3184773003300. Its totient is φ = 1061539621344.

The previous prime is 2123130622409. The next prime is 2123130622447. The reversal of 2123130622442 is 2442260313212.

It can be written as a sum of positive squares in 2 ways, for example, as 2093950808401 + 29179814041 = 1447049^2 + 170821^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 2123130622399 and 2123130622408.

It is not an unprimeable number, because it can be changed into a prime (2123130622447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12741467 + ... + 12907022.

Almost surely, 2^{2123130622442} is an apocalyptic number.

2123130622442 is a deficient number, since it is larger than the sum of its proper divisors (1061642380858).

2123130622442 is a wasteful number, since it uses less digits than its factorization.

2123130622442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25689880.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 2123130622442 its reverse (2442260313212), we get a palindrome (4565390935654).

The spelling of 2123130622442 in words is "two trillion, one hundred twenty-three billion, one hundred thirty million, six hundred twenty-two thousand, four hundred forty-two".