123211023234140 has 96 divisors (see below), whose sum is σ = 271288901237760. Its totient is φ = 46915341580800.

The previous prime is 123211023234137. The next prime is 123211023234193. The reversal of 123211023234140 is 41432320112321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2317669160 + ... + 2317722320.

It is an arithmetic number, because the mean of its divisors is an integer number (2825926054560).

Almost surely, 2^{123211023234140} is an apocalyptic number.

123211023234140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123211023234140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135644450618880).

123211023234140 is an abundant number, since it is smaller than the sum of its proper divisors (148077878003620).

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

123211023234140 is a wasteful number, since it uses less digits than its factorization.

123211023234140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77283 (or 77281 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 123211023234140 its reverse (41432320112321), we get a palindrome (164643343346461).

The spelling of 123211023234140 in words is "one hundred twenty-three trillion, two hundred eleven billion, twenty-three million, two hundred thirty-four thousand, one hundred forty".