1201111002103 has 8 divisors (see below), whose sum is σ = 1271778336288. Its totient is φ = 1130445195264.

The previous prime is 1201111002101. The next prime is 1201111002163. The reversal of 1201111002103 is 3012001111021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1201111002103 - 2¹ = 1201111002101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201111002101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1503150 + ... + 2159092.

It is an arithmetic number, because the mean of its divisors is an integer number (158972292036).

Almost surely, 2^{1201111002103} is an apocalyptic number.

1201111002103 is a deficient number, since it is larger than the sum of its proper divisors (70667334185).

1201111002103 is a wasteful number, since it uses less digits than its factorization.

1201111002103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763673.

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

Adding to 1201111002103 its reverse (3012001111021), we get a palindrome (4213112113124).

The spelling of 1201111002103 in words is "one trillion, two hundred one billion, one hundred eleven million, two thousand, one hundred three".