123101023020 has 24 divisors (see below), whose sum is σ = 344682864624. Its totient is φ = 32826939456.

The previous prime is 123101022997. The next prime is 123101023079. The reversal of 123101023020 is 20320101321.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1025841799 + ... + 1025841918.

It is an arithmetic number, because the mean of its divisors is an integer number (14361786026).

Almost surely, 2^123101023020 is an apocalyptic number.

123101023020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123101023020 is an abundant number, since it is smaller than the sum of its proper divisors (221581841604).

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

123101023020 is a wasteful number, since it uses less digits than its factorization.

123101023020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051683729 (or 2051683727 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 123101023020 its reverse (20320101321), we get a palindrome (143421124341).

The spelling of 123101023020 in words is "one hundred twenty-three billion, one hundred one million, twenty-three thousand, twenty".