1201121210963 has 2 divisors, whose sum is σ = 1201121210964. Its totient is φ = 1201121210962.

The previous prime is 1201121210869. The next prime is 1201121211019. The reversal of 1201121210963 is 3690121211021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1201121210963 - 2³⁰ = 1200047469139 is a prime.

It is not a weakly prime, because it can be changed into another prime (1201121210063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600560605481 + 600560605482.

It is an arithmetic number, because the mean of its divisors is an integer number (600560605482).

Almost surely, 2^{1201121210963} is an apocalyptic number.

1201121210963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201121210963 is an equidigital number, since it uses as much as digits as its factorization.

1201121210963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 29.

Adding to 1201121210963 its reverse (3690121211021), we get a palindrome (4891242421984).

The spelling of 1201121210963 in words is "one trillion, two hundred one billion, one hundred twenty-one million, two hundred ten thousand, nine hundred sixty-three".