123012032310102 has 128 divisors (see below), whose sum is σ = 277749044084736. Its totient is φ = 36036569619072.

The previous prime is 123012032310077. The next prime is 123012032310109. The reversal of 123012032310102 is 201013230210321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123012032310109) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3345700123 + ... + 3345736889.

It is an arithmetic number, because the mean of its divisors is an integer number (2169914406912).

Almost surely, 2^{123012032310102} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123012032310102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138874522042368).

123012032310102 is an abundant number, since it is smaller than the sum of its proper divisors (154737011774634).

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

123012032310102 is a wasteful number, since it uses less digits than its factorization.

123012032310102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45394.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 123012032310102 its reverse (201013230210321), we get a palindrome (324025262520423).

The spelling of 123012032310102 in words is "one hundred twenty-three trillion, twelve billion, thirty-two million, three hundred ten thousand, one hundred two".