1200103021153 has 2 divisors, whose sum is σ = 1200103021154. Its totient is φ = 1200103021152.

The previous prime is 1200103021121. The next prime is 1200103021189. The reversal of 1200103021153 is 3511203010021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1081086301009 + 119016720144 = 1039753^2 + 344988^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200103021153 - 2⁵ = 1200103021121 is a prime.

It is a super-2 number, since 2×1200103021153² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1200103021153.

It is not a weakly prime, because it can be changed into another prime (1200103027153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600051510576 + 600051510577.

It is an arithmetic number, because the mean of its divisors is an integer number (600051510577).

Almost surely, 2^{1200103021153} is an apocalyptic number.

It is an amenable number.

1200103021153 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200103021153 is an equidigital number, since it uses as much as digits as its factorization.

1200103021153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 1200103021153 its reverse (3511203010021), we get a palindrome (4711306031174).

The spelling of 1200103021153 in words is "one trillion, two hundred billion, one hundred three million, twenty-one thousand, one hundred fifty-three".