123113020422 has 64 divisors (see below), whose sum is σ = 282509180928. Its totient is φ = 35036820000.

The previous prime is 123113020403. The next prime is 123113020427. The reversal of 123113020422 is 224020311321.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123113020427) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 25481547 + ... + 25486377.

It is an arithmetic number, because the mean of its divisors is an integer number (4414205952).

Almost surely, 2^123113020422 is an apocalyptic number.

123113020422 is an abundant number, since it is smaller than the sum of its proper divisors (159396160506).

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

123113020422 is a wasteful number, since it uses less digits than its factorization.

123113020422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7105.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 123113020422 its reverse (224020311321), we get a palindrome (347133331743).

The spelling of 123113020422 in words is "one hundred twenty-three billion, one hundred thirteen million, twenty thousand, four hundred twenty-two".