2123653426250 has 20 divisors (see below), whose sum is σ = 3980575984506. Its totient is φ = 849461370000.

The previous prime is 2123653426211. The next prime is 2123653426261. The reversal of 2123653426250 is 526243563212.

It can be written as a sum of positive squares in 5 ways, for example, as 135533686201 + 1988119740049 = 368149^2 + 1410007^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2123653426198 and 2123653426207.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 849460121 + ... + 849462620.

Almost surely, 2^{2123653426250} is an apocalyptic number.

2123653426250 is a deficient number, since it is larger than the sum of its proper divisors (1856922558256).

2123653426250 is an equidigital number, since it uses as much as digits as its factorization.

2123653426250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698922763 (or 1698922748 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 41.

Adding to 2123653426250 its reverse (526243563212), we get a palindrome (2649896989462).

The spelling of 2123653426250 in words is "two trillion, one hundred twenty-three billion, six hundred fifty-three million, four hundred twenty-six thousand, two hundred fifty".