10000311121 has 4 divisors (see below), whose sum is σ = 10000520244. Its totient is φ = 10000102000.

The previous prime is 10000311091. The next prime is 10000311133. The reversal of 10000311121 is 12111300001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1131380496 + 8868930625 = 33636^2 + 94175^2 .

It is a cyclic number.

It is not a de Polignac number, because 10000311121 - 2⁷ = 10000310993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10000311098 and 10000311107.

It is not an unprimeable number, because it can be changed into a prime (10000317121) 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, 6471 + ... + 141571.

It is an arithmetic number, because the mean of its divisors is an integer number (2500130061).

Almost surely, 2^10000311121 is an apocalyptic number.

It is an amenable number.

10000311121 is a deficient number, since it is larger than the sum of its proper divisors (209123).

10000311121 is an equidigital number, since it uses as much as digits as its factorization.

10000311121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209122.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 10000311121 its reverse (12111300001), we get a palindrome (22111611122).

The spelling of 10000311121 in words is "ten billion, three hundred eleven thousand, one hundred twenty-one".