1011203120203 has 8 divisors (see below), whose sum is σ = 1014778896800. Its totient is φ = 1007632726848.

The previous prime is 1011203120189. The next prime is 1011203120231. The reversal of 1011203120203 is 3020213021101.

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

It is a cyclic number.

It is not a de Polignac number, because 1011203120203 - 2⁵ = 1011203120171 is a prime.

It is a super-2 number, since 2×1011203120203² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011203120233) 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, 969276 + ... + 1721017.

It is an arithmetic number, because the mean of its divisors is an integer number (126847362100).

Almost surely, 2^{1011203120203} is an apocalyptic number.

1011203120203 is a deficient number, since it is larger than the sum of its proper divisors (3575776597).

1011203120203 is an equidigital number, since it uses as much as digits as its factorization.

1011203120203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2691621.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1011203120203 its reverse (3020213021101), we get a palindrome (4031416141304).

The spelling of 1011203120203 in words is "one trillion, eleven billion, two hundred three million, one hundred twenty thousand, two hundred three".