10121031203 has 4 divisors (see below), whose sum is σ = 10121369328. Its totient is φ = 10120693080.

The previous prime is 10121031191. The next prime is 10121031211. The reversal of 10121031203 is 30213012101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10121031203 - 2¹² = 10121027107 is a prime.

It is a super-2 number, since 2×10121031203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10121031223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119276 + ... + 185657.

It is an arithmetic number, because the mean of its divisors is an integer number (2530342332).

Almost surely, 2^10121031203 is an apocalyptic number.

10121031203 is a deficient number, since it is larger than the sum of its proper divisors (338125).

10121031203 is an equidigital number, since it uses as much as digits as its factorization.

10121031203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338124.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 10121031203 its reverse (30213012101), we get a palindrome (40334043304).

The spelling of 10121031203 in words is "ten billion, one hundred twenty-one million, thirty-one thousand, two hundred three".