1011203053125 has 24 divisors (see below), whose sum is σ = 1685230575840. Its totient is φ = 539308290000.

The previous prime is 1011203053123. The next prime is 1011203053169. The reversal of 1011203053125 is 5213503021101.

It is not a de Polignac number, because 1011203053125 - 2¹ = 1011203053123 is a prime.

It is a super-2 number, since 2×1011203053125² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1011203053095 and 1011203053104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011203053121) 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 23 ways as a sum of consecutive naturals, for example, 53921455 + ... + 53940204.

It is an arithmetic number, because the mean of its divisors is an integer number (70217940660).

Almost surely, 2^{1011203053125} is an apocalyptic number.

1011203053125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1011203053125 is a deficient number, since it is larger than the sum of its proper divisors (674027522715).

1011203053125 is an frugal number, since it uses more digits than its factorization.

1011203053125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107861687 (or 107861667 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 1011203053125 its reverse (5213503021101), we get a palindrome (6224706074226).

The spelling of 1011203053125 in words is "one trillion, eleven billion, two hundred three million, fifty-three thousand, one hundred twenty-five".