1201111110029 has 2 divisors, whose sum is σ = 1201111110030. Its totient is φ = 1201111110028.

The previous prime is 1201111109993. The next prime is 1201111110113. The reversal of 1201111110029 is 9200111111021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1200591361225 + 519748804 = 1095715^2 + 22798^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201111110029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201111110629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600555555014 + 600555555015.

It is an arithmetic number, because the mean of its divisors is an integer number (600555555015).

Almost surely, 2^{1201111110029} is an apocalyptic number.

It is an amenable number.

1201111110029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201111110029 is an equidigital number, since it uses as much as digits as its factorization.

1201111110029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 20.

The spelling of 1201111110029 in words is "one trillion, two hundred one billion, one hundred eleven million, one hundred ten thousand, twenty-nine".