1201002109903 has 2 divisors, whose sum is σ = 1201002109904. Its totient is φ = 1201002109902.

The previous prime is 1201002109889. The next prime is 1201002110003. The reversal of 1201002109903 is 3099012001021.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201002109903 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201002109103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600501054951 + 600501054952.

It is an arithmetic number, because the mean of its divisors is an integer number (600501054952).

Almost surely, 2^{1201002109903} is an apocalyptic number.

1201002109903 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201002109903 is an equidigital number, since it uses as much as digits as its factorization.

1201002109903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 28.

The spelling of 1201002109903 in words is "one trillion, two hundred one billion, two million, one hundred nine thousand, nine hundred three".