123023030220 has 36 divisors (see below), whose sum is σ = 373169858880. Its totient is φ = 32806141344.

The previous prime is 123023030201. The next prime is 123023030287. The reversal of 123023030220 is 22030320321.

It is a happy number.

123023030220 is a `hidden beast` number, since 12 + 302 + 30 + 302 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×123023030220² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 123023030193 and 123023030202.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 341730460 + ... + 341730819.

Almost surely, 2^123023030220 is an apocalyptic number.

123023030220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123023030220 is an abundant number, since it is smaller than the sum of its proper divisors (250146828660).

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

123023030220 is a wasteful number, since it uses less digits than its factorization.

123023030220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683461294 (or 683461289 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 123023030220 its reverse (22030320321), we get a palindrome (145053350541).

The spelling of 123023030220 in words is "one hundred twenty-three billion, twenty-three million, thirty thousand, two hundred twenty".