131223011211210 has 128 divisors (see below), whose sum is σ = 321270060810240. Its totient is φ = 34295049734400.

The previous prime is 131223011211203. The next prime is 131223011211247. The reversal of 131223011211210 is 12112110322131.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 578805756 + ... + 579032424.

It is an arithmetic number, because the mean of its divisors is an integer number (2509922350080).

Almost surely, 2^{131223011211210} is an apocalyptic number.

131223011211210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 131223011211210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160635030405120).

131223011211210 is an abundant number, since it is smaller than the sum of its proper divisors (190047049599030).

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

131223011211210 is a wasteful number, since it uses less digits than its factorization.

131223011211210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228364.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 131223011211210 its reverse (12112110322131), we get a palindrome (143335121533341).

The spelling of 131223011211210 in words is "one hundred thirty-one trillion, two hundred twenty-three billion, eleven million, two hundred eleven thousand, two hundred ten".