10203200111121 has 16 divisors (see below), whose sum is σ = 13729232774400. Its totient is φ = 6739651847808.

The previous prime is 10203200111087. The next prime is 10203200111123. The reversal of 10203200111121 is 12111100230201.

It is not a de Polignac number, because 10203200111121 - 2⁷ = 10203200110993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10203200111121.

It is not an unprimeable number, because it can be changed into a prime (10203200111123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52342725 + ... + 52537293.

It is an arithmetic number, because the mean of its divisors is an integer number (858077048400).

Almost surely, 2^{10203200111121} is an apocalyptic number.

It is an amenable number.

10203200111121 is a deficient number, since it is larger than the sum of its proper divisors (3526032663279).

10203200111121 is a wasteful number, since it uses less digits than its factorization.

10203200111121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355048.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 10203200111121 its reverse (12111100230201), we get a palindrome (22314300341322).

The spelling of 10203200111121 in words is "ten trillion, two hundred three billion, two hundred million, one hundred eleven thousand, one hundred twenty-one".