1320203290253 has 2 divisors, whose sum is σ = 1320203290254. Its totient is φ = 1320203290252.

The previous prime is 1320203290213. The next prime is 1320203290261. The reversal of 1320203290253 is 3520923020231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1016864509609 + 303338780644 = 1008397^2 + 550762^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320203290253 - 2³⁸ = 1045325383309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320203290213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660101645126 + 660101645127.

It is an arithmetic number, because the mean of its divisors is an integer number (660101645127).

Almost surely, 2^{1320203290253} is an apocalyptic number.

It is an amenable number.

1320203290253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320203290253 is an equidigital number, since it uses as much as digits as its factorization.

1320203290253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 32.

The spelling of 1320203290253 in words is "one trillion, three hundred twenty billion, two hundred three million, two hundred ninety thousand, two hundred fifty-three".