123021221230 has 16 divisors (see below), whose sum is σ = 221628621744. Its totient is φ = 49166172160.

The previous prime is 123021221209. The next prime is 123021221237. The reversal of 123021221230 is 32122120321.

123021221230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 123021221198 and 123021221207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123021221237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5277331 + ... + 5300590.

It is an arithmetic number, because the mean of its divisors is an integer number (13851788859).

Almost surely, 2^123021221230 is an apocalyptic number.

123021221230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123021221230 is a deficient number, since it is larger than the sum of its proper divisors (98607400514).

123021221230 is a wasteful number, since it uses less digits than its factorization.

123021221230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10579091.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 123021221230 its reverse (32122120321), we get a palindrome (155143341551).

The spelling of 123021221230 in words is "one hundred twenty-three billion, twenty-one million, two hundred twenty-one thousand, two hundred thirty".