1203435045961 has 2 divisors, whose sum is σ = 1203435045962. Its totient is φ = 1203435045960.

The previous prime is 1203435045899. The next prime is 1203435046031. The reversal of 1203435045961 is 1695405343021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1200462070336 + 2972975625 = 1095656^2 + 54525^2 .

It is a cyclic number.

It is not a de Polignac number, because 1203435045961 - 2¹¹ = 1203435043913 is a prime.

It is not a weakly prime, because it can be changed into another prime (1203435045361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601717522980 + 601717522981.

It is an arithmetic number, because the mean of its divisors is an integer number (601717522981).

Almost surely, 2^{1203435045961} is an apocalyptic number.

It is an amenable number.

1203435045961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203435045961 is an equidigital number, since it uses as much as digits as its factorization.

1203435045961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 388800, while the sum is 43.

The spelling of 1203435045961 in words is "one trillion, two hundred three billion, four hundred thirty-five million, forty-five thousand, nine hundred sixty-one".