123113030103020 has 24 divisors (see below), whose sum is σ = 258559957191984. Its totient is φ = 49240908426816.

The previous prime is 123113030102977. The next prime is 123113030103031. The reversal of 123113030103020 is 20301030311321.

It is a super-2 number, since 2×123113030103020² (a number of 29 digits) contains 22 as substring.

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 = 123113030102983 and 123113030103001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 268741319 + ... + 269199038.

It is an arithmetic number, because the mean of its divisors is an integer number (10773331549666).

Almost surely, 2^{123113030103020} is an apocalyptic number.

123113030103020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123113030103020 is an abundant number, since it is smaller than the sum of its proper divisors (135446927088964).

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

123113030103020 is a wasteful number, since it uses less digits than its factorization.

123113030103020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537951809 (or 537951807 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 123113030103020 its reverse (20301030311321), we get a palindrome (143414060414341).

The spelling of 123113030103020 in words is "one hundred twenty-three trillion, one hundred thirteen billion, thirty million, one hundred three thousand, twenty".