2131123210000 has 300 divisors, whose sum is σ = 5361836625552. Its totient is φ = 820260000000.

The previous prime is 2131123209979. The next prime is 2131123210001. The reversal of 2131123210000 is 123211312.

It is a super-2 number, since 2×2131123210000² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (2131123210001) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 2027709475 + ... + 2027710525.

Almost surely, 2^{2131123210000} is an apocalyptic number.

2131123210000 is a gapful number since it is divisible by the number (20) 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 2131123210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2680918312776).

2131123210000 is an abundant number, since it is smaller than the sum of its proper divisors (3230713415552).

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

2131123210000 is a wasteful number, since it uses less digits than its factorization.

2131123210000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352 (or 1300 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 2131123210000 its reverse (123211312), we get a palindrome (2131246421312).

The spelling of 2131123210000 in words is "two trillion, one hundred thirty-one billion, one hundred twenty-three million, two hundred ten thousand".