123012211032430 has 64 divisors (see below), whose sum is σ = 231178765184640. Its totient is φ = 47039119497216.

The previous prime is 123012211032401. The next prime is 123012211032433. The reversal of 123012211032430 is 34230112210321.

It is a junction number, because it is equal to n+sod(n) for n = 123012211032395 and 123012211032404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123012211032433) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4077422386 + ... + 4077452554.

It is an arithmetic number, because the mean of its divisors is an integer number (3612168206010).

Almost surely, 2^{123012211032430} is an apocalyptic number.

123012211032430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123012211032430 is a deficient number, since it is larger than the sum of its proper divisors (108166554152210).

123012211032430 is a wasteful number, since it uses less digits than its factorization.

123012211032430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39565.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 123012211032430 its reverse (34230112210321), we get a palindrome (157242323242751).

The spelling of 123012211032430 in words is "one hundred twenty-three trillion, twelve billion, two hundred eleven million, thirty-two thousand, four hundred thirty".