13010121001021 has 32 divisors (see below), whose sum is σ = 13916131891200. Its totient is φ = 12136723511616.

The previous prime is 13010121001013. The next prime is 13010121001043. The reversal of 13010121001021 is 12010012101031.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13010121001021 - 2³ = 13010121001013 is a prime.

It is a super-2 number, since 2×13010121001021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13010121000992 and 13010121001010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13010121001051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70397680 + ... + 70582246.

It is an arithmetic number, because the mean of its divisors is an integer number (434879121600).

Almost surely, 2^{13010121001021} is an apocalyptic number.

It is an amenable number.

13010121001021 is a deficient number, since it is larger than the sum of its proper divisors (906010890179).

13010121001021 is a wasteful number, since it uses less digits than its factorization.

13010121001021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185113.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 13010121001021 its reverse (12010012101031), we get a palindrome (25020133102052).

The spelling of 13010121001021 in words is "thirteen trillion, ten billion, one hundred twenty-one million, one thousand, twenty-one".