13020143121 has 8 divisors (see below), whose sum is σ = 19289100960. Its totient is φ = 8680095396.

The previous prime is 13020143113. The next prime is 13020143131. The reversal of 13020143121 is 12134102031.

13020143121 is a `hidden beast` number, since 1 + 30 + 201 + 431 + 2 + 1 = 666.

It is not a de Polignac number, because 13020143121 - 2³ = 13020143113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13020143094 and 13020143103.

It is not an unprimeable number, because it can be changed into a prime (13020143131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 241113735 + ... + 241113788.

It is an arithmetic number, because the mean of its divisors is an integer number (2411137620).

Almost surely, 2^13020143121 is an apocalyptic number.

It is an amenable number.

13020143121 is a deficient number, since it is larger than the sum of its proper divisors (6268957839).

13020143121 is an equidigital number, since it uses as much as digits as its factorization.

13020143121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482227532 (or 482227526 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 13020143121 its reverse (12134102031), we get a palindrome (25154245152).

The spelling of 13020143121 in words is "thirteen billion, twenty million, one hundred forty-three thousand, one hundred twenty-one".