123111222132130 has 32 divisors (see below), whose sum is σ = 227009257881840. Its totient is φ = 48042520135680.

The previous prime is 123111222132109. The next prime is 123111222132131. The reversal of 123111222132130 is 31231222111321.

It can be written as a sum of positive squares in 8 ways, for example, as 34255958473881 + 88855263658249 = 5852859^2 + 9426307^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123111222132095 and 123111222132104.

It is not an unprimeable number, because it can be changed into a prime (123111222132131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19782106 + ... + 25249834.

Almost surely, 2^{123111222132130} is an apocalyptic number.

123111222132130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123111222132130 is a deficient number, since it is larger than the sum of its proper divisors (103898035749710).

123111222132130 is a wasteful number, since it uses less digits than its factorization.

123111222132130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5522694.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 123111222132130 its reverse (31231222111321), we get a palindrome (154342444243451).

The spelling of 123111222132130 in words is "one hundred twenty-three trillion, one hundred eleven billion, two hundred twenty-two million, one hundred thirty-two thousand, one hundred thirty".