1200020023253 has 2 divisors, whose sum is σ = 1200020023254. Its totient is φ = 1200020023252.

The previous prime is 1200020023219. The next prime is 1200020023259. The reversal of 1200020023253 is 3523200200021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1188540400804 + 11479622449 = 1090202^2 + 107143^2 .

It is an emirp because it is prime and its reverse (3523200200021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1200020023253 - 2²⁴ = 1200003246037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1200020023259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600010011626 + 600010011627.

It is an arithmetic number, because the mean of its divisors is an integer number (600010011627).

Almost surely, 2^{1200020023253} is an apocalyptic number.

It is an amenable number.

1200020023253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200020023253 is an equidigital number, since it uses as much as digits as its factorization.

1200020023253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 1200020023253 its reverse (3523200200021), we get a palindrome (4723220223274).

The spelling of 1200020023253 in words is "one trillion, two hundred billion, twenty million, twenty-three thousand, two hundred fifty-three".