10203110011031 has 32 divisors (see below), whose sum is σ = 12283487232000. Its totient is φ = 8462728048320.

The previous prime is 10203110011019. The next prime is 10203110011139. The reversal of 10203110011031 is 13011001130201.

It is a happy number.

It is not a de Polignac number, because 10203110011031 - 2⁶ = 10203110010967 is a prime.

It is a super-2 number, since 2×10203110011031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10203110010997 and 10203110011015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10203110071031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165408011 + ... + 165469683.

It is an arithmetic number, because the mean of its divisors is an integer number (383858976000).

Almost surely, 2^{10203110011031} is an apocalyptic number.

10203110011031 is a deficient number, since it is larger than the sum of its proper divisors (2080377220969).

10203110011031 is an equidigital number, since it uses as much as digits as its factorization.

10203110011031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77284 (or 77270 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 10203110011031 its reverse (13011001130201), we get a palindrome (23214111141232).

The spelling of 10203110011031 in words is "ten trillion, two hundred three billion, one hundred ten million, eleven thousand, thirty-one".