10121250203 has 12 divisors (see below), whose sum is σ = 10980412512. Its totient is φ = 9323191680.

The previous prime is 10121250179. The next prime is 10121250221. The reversal of 10121250203 is 30205212101.

It is a happy number.

It is not a de Polignac number, because 10121250203 - 2²² = 10117055899 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10121250253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 358988 + ... + 386153.

It is an arithmetic number, because the mean of its divisors is an integer number (915034376).

Almost surely, 2^10121250203 is an apocalyptic number.

10121250203 is a deficient number, since it is larger than the sum of its proper divisors (859162309).

10121250203 is an equidigital number, since it uses as much as digits as its factorization.

10121250203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745222 (or 745205 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 10121250203 its reverse (30205212101), we get a palindrome (40326462304).

The spelling of 10121250203 in words is "ten billion, one hundred twenty-one million, two hundred fifty thousand, two hundred three".