10121303021 has 16 divisors (see below), whose sum is σ = 11130566400. Its totient is φ = 9166248000.

The previous prime is 10121303011. The next prime is 10121303029. The reversal of 10121303021 is 12030312101.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10121303021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10121302987 and 10121303005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121303029) 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, 35285 + ... + 146586.

It is an arithmetic number, because the mean of its divisors is an integer number (695660400).

Almost surely, 2^10121303021 is an apocalyptic number.

It is an amenable number.

10121303021 is a deficient number, since it is larger than the sum of its proper divisors (1009263379).

10121303021 is a wasteful number, since it uses less digits than its factorization.

10121303021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182020.

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

Adding to 10121303021 its reverse (12030312101), we get a palindrome (22151615122).

The spelling of 10121303021 in words is "ten billion, one hundred twenty-one million, three hundred three thousand, twenty-one".