2131212101320 has 32 divisors (see below), whose sum is σ = 4796168112000. Its totient is φ = 852317572288.

The previous prime is 2131212101303. The next prime is 2131212101327. The reversal of 2131212101320 is 231012121312.

It is not an unprimeable number, because it can be changed into a prime (2131212101327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5020624 + ... + 5428543.

It is an arithmetic number, because the mean of its divisors is an integer number (149880253500).

Almost surely, 2^{2131212101320} is an apocalyptic number.

2131212101320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131212101320 is an abundant number, since it is smaller than the sum of its proper divisors (2664956010680).

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

2131212101320 is a wasteful number, since it uses less digits than its factorization.

2131212101320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10454277 (or 10454273 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2131212101320 its reverse (231012121312), we get a palindrome (2362224222632).

The spelling of 2131212101320 in words is "two trillion, one hundred thirty-one billion, two hundred twelve million, one hundred one thousand, three hundred twenty".