2013123201020 has 24 divisors (see below), whose sum is σ = 4229321040000. Its totient is φ = 804913600832.

The previous prime is 2013123201017. The next prime is 2013123201049. The reversal of 2013123201020 is 201023213102.

It is a super-2 number, since 2×2013123201020² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2013123201020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20930795 + ... + 21026754.

It is an arithmetic number, because the mean of its divisors is an integer number (176221710000).

Almost surely, 2^{2013123201020} is an apocalyptic number.

2013123201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2013123201020 is an abundant number, since it is smaller than the sum of its proper divisors (2216197838980).

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

2013123201020 is a wasteful number, since it uses less digits than its factorization.

2013123201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41959957 (or 41959955 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 2013123201020 its reverse (201023213102), we get a palindrome (2214146414122).

The spelling of 2013123201020 in words is "two trillion, thirteen billion, one hundred twenty-three million, two hundred one thousand, twenty".