123013020302020 has 96 divisors (see below), whose sum is σ = 273508896286080. Its totient is φ = 46343837767680.

The previous prime is 123013020302009. The next prime is 123013020302027. The reversal of 123013020302020 is 20203020310321.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (123013020302027) 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, 227598219 + ... + 228138061.

It is an arithmetic number, because the mean of its divisors is an integer number (2849051002980).

Almost surely, 2^{123013020302020} is an apocalyptic number.

123013020302020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123013020302020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136754448143040).

123013020302020 is an abundant number, since it is smaller than the sum of its proper divisors (150495875984060).

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

123013020302020 is a wasteful number, since it uses less digits than its factorization.

123013020302020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543365 (or 543363 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 123013020302020 its reverse (20203020310321), we get a palindrome (143216040612341).

The spelling of 123013020302020 in words is "one hundred twenty-three trillion, thirteen billion, twenty million, three hundred two thousand, twenty".