2121352453026 has 48 divisors (see below), whose sum is σ = 4607364041280. Its totient is φ = 705410177760.

The previous prime is 2121352452937. The next prime is 2121352453093. The reversal of 2121352453026 is 6203542531212.

2121352453026 is a `hidden beast` number, since 2 + 121 + 3 + 524 + 5 + 3 + 0 + 2 + 6 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 79488681 + ... + 79515363.

It is an arithmetic number, because the mean of its divisors is an integer number (95986750860).

Almost surely, 2^{2121352453026} is an apocalyptic number.

2121352453026 is an abundant number, since it is smaller than the sum of its proper divisors (2486011588254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2121352453026 is a wasteful number, since it uses less digits than its factorization.

2121352453026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37191 (or 37188 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 2121352453026 its reverse (6203542531212), we get a palindrome (8324894984238).

The spelling of 2121352453026 in words is "two trillion, one hundred twenty-one billion, three hundred fifty-two million, four hundred fifty-three thousand, twenty-six".