2131211301100 has 72 divisors (see below), whose sum is σ = 5397859514880. Its totient is φ = 715154176320.

The previous prime is 2131211301097. The next prime is 2131211301103. The reversal of 2131211301100 is 11031121312.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2131211301097) and next prime (2131211301103).

It is a super-2 number, since 2×2131211301100² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2131211301103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32356330 + ... + 32422129.

It is an arithmetic number, because the mean of its divisors is an integer number (74970271040).

Almost surely, 2^{2131211301100} is an apocalyptic number.

2131211301100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131211301100 is an abundant number, since it is smaller than the sum of its proper divisors (3266648213780).

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

2131211301100 is a wasteful number, since it uses less digits than its factorization.

2131211301100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64778527 (or 64778520 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 2131211301100 its reverse (11031121312), we get a palindrome (2142242422412).

The spelling of 2131211301100 in words is "two trillion, one hundred thirty-one billion, two hundred eleven million, three hundred one thousand, one hundred".