13023003321020 has 108 divisors (see below), whose sum is σ = 34968378657240. Its totient is φ = 4059117881280.

The previous prime is 13023003320983. The next prime is 13023003321059. The reversal of 13023003321020 is 2012330032031.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 13023003320983 and 13023003321001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 54793730 + ... + 55030889.

Almost surely, 2^{13023003321020} is an apocalyptic number.

13023003321020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13023003321020 is an abundant number, since it is smaller than the sum of its proper divisors (21945375336220).

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

13023003321020 is a wasteful number, since it uses less digits than its factorization.

13023003321020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109824664 (or 109824644 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 13023003321020 its reverse (2012330032031), we get a palindrome (15035333353051).

The spelling of 13023003321020 in words is "thirteen trillion, twenty-three billion, three million, three hundred twenty-one thousand, twenty".