123012210020030 has 32 divisors (see below), whose sum is σ = 222705004888800. Its totient is φ = 48919774928512.

The previous prime is 123012210020027. The next prime is 123012210020071. The reversal of 123012210020030 is 30020012210321.

It is a junction number, because it is equal to n+sod(n) for n = 123012210019990 and 123012210020008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132868061 + ... + 133790679.

It is an arithmetic number, because the mean of its divisors is an integer number (6959531402775).

Almost surely, 2^{123012210020030} is an apocalyptic number.

123012210020030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123012210020030 is a deficient number, since it is larger than the sum of its proper divisors (99692794868770).

123012210020030 is a wasteful number, since it uses less digits than its factorization.

123012210020030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999868.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 123012210020030 its reverse (30020012210321), we get a palindrome (153032222230351).

The spelling of 123012210020030 in words is "one hundred twenty-three trillion, twelve billion, two hundred ten million, twenty thousand, thirty".