1201012101103 has 2 divisors, whose sum is σ = 1201012101104. Its totient is φ = 1201012101102.

The previous prime is 1201012101089. The next prime is 1201012101127. The reversal of 1201012101103 is 3011012101021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201012101103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201010101103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600506050551 + 600506050552.

It is an arithmetic number, because the mean of its divisors is an integer number (600506050552).

Almost surely, 2^{1201012101103} is an apocalyptic number.

1201012101103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201012101103 is an equidigital number, since it uses as much as digits as its factorization.

1201012101103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1201012101103 its reverse (3011012101021), we get a palindrome (4212024202124).

The spelling of 1201012101103 in words is "one trillion, two hundred one billion, twelve million, one hundred one thousand, one hundred three".