13010121020 has 48 divisors (see below), whose sum is σ = 29444264640. Its totient is φ = 4800247296.

The previous prime is 13010121001. The next prime is 13010121073. The reversal of 13010121020 is 2012101031.

It is a junction number, because it is equal to n+sod(n) for n = 13010120992 and 13010121010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 355121 + ... + 390039.

It is an arithmetic number, because the mean of its divisors is an integer number (613422180).

Almost surely, 2^13010121020 is an apocalyptic number.

13010121020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13010121020 is an abundant number, since it is smaller than the sum of its proper divisors (16434143620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13010121020 is a wasteful number, since it uses less digits than its factorization.

13010121020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36374 (or 36372 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 13010121020 its reverse (2012101031), we get a palindrome (15022222051).

The spelling of 13010121020 in words is "thirteen billion, ten million, one hundred twenty-one thousand, twenty".