210123030303030 has 64 divisors (see below), whose sum is σ = 543144884970240. Its totient is φ = 51717099866496.

The previous prime is 210123030303001. The next prime is 210123030303031. The reversal of 210123030303030 is 30303030321012.

It is an alternating number because its digits alternate between even and odd.

210123030303030 is a modest number, since divided by 30303030 gives 2101230 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 210123030302988 and 210123030303006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210123030303031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24927132 + ... + 32273951.

It is an arithmetic number, because the mean of its divisors is an integer number (8486638827660).

Almost surely, 2^{210123030303030} is an apocalyptic number.

210123030303030 is an abundant number, since it is smaller than the sum of its proper divisors (333021854667210).

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

210123030303030 is a wasteful number, since it uses less digits than its factorization.

210123030303030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57210525.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 210123030303030 its reverse (30303030321012), we get a palindrome (240426060624042).

The spelling of 210123030303030 in words is "two hundred ten trillion, one hundred twenty-three billion, thirty million, three hundred three thousand, thirty".