20100003331121 has 16 divisors (see below), whose sum is σ = 23460379246080. Its totient is φ = 16861870164480.

The previous prime is 20100003331081. The next prime is 20100003331151. The reversal of 20100003331121 is 12113330000102.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20100003331121 is a prime.

It is a super-2 number, since 2×20100003331121² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20100003331121.

It is not an unprimeable number, because it can be changed into a prime (20100003331151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67628681 + ... + 67925241.

It is an arithmetic number, because the mean of its divisors is an integer number (1466273702880).

Almost surely, 2^{20100003331121} is an apocalyptic number.

It is an amenable number.

20100003331121 is a deficient number, since it is larger than the sum of its proper divisors (3360375914959).

20100003331121 is a wasteful number, since it uses less digits than its factorization.

20100003331121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502624.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20100003331121 its reverse (12113330000102), we get a palindrome (32213333331223).

The spelling of 20100003331121 in words is "twenty trillion, one hundred billion, three million, three hundred thirty-one thousand, one hundred twenty-one".