1202565263953 has 2 divisors, whose sum is σ = 1202565263954. Its totient is φ = 1202565263952.

The previous prime is 1202565263917. The next prime is 1202565263969. The reversal of 1202565263953 is 3593625652021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 701560358464 + 501004905489 = 837592^2 + 707817^2 .

It is a cyclic number.

It is not a de Polignac number, because 1202565263953 - 2⁹ = 1202565263441 is a prime.

It is a super-2 number, since 2×1202565263953² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1202565263897 and 1202565263906.

It is not a weakly prime, because it can be changed into another prime (1202565263993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601282631976 + 601282631977.

It is an arithmetic number, because the mean of its divisors is an integer number (601282631977).

Almost surely, 2^{1202565263953} is an apocalyptic number.

It is an amenable number.

1202565263953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1202565263953 is an equidigital number, since it uses as much as digits as its factorization.

1202565263953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916000, while the sum is 49.

The spelling of 1202565263953 in words is "one trillion, two hundred two billion, five hundred sixty-five million, two hundred sixty-three thousand, nine hundred fifty-three".