123030444402 has 64 divisors (see below), whose sum is σ = 283516796160. Its totient is φ = 39514303872.

The previous prime is 123030444353. The next prime is 123030444419. The reversal of 123030444402 is 204444030321.

It is a happy number.

It is a super-2 number, since 2×123030444402² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93123 + ... + 504710.

It is an arithmetic number, because the mean of its divisors is an integer number (4429949940).

Almost surely, 2^123030444402 is an apocalyptic number.

123030444402 is an abundant number, since it is smaller than the sum of its proper divisors (160486351758).

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

123030444402 is a wasteful number, since it uses less digits than its factorization.

123030444402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597984 (or 597978 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 123030444402 its reverse (204444030321), we get a palindrome (327474474723).

The spelling of 123030444402 in words is "one hundred twenty-three billion, thirty million, four hundred forty-four thousand, four hundred two".