2111111321130 has 384 divisors, whose sum is σ = 6917801200128. Its totient is φ = 452191444992.

The previous prime is 2111111321071. The next prime is 2111111321131. The reversal of 2111111321130 is 311231111112.

2111111321130 is a `hidden beast` number, since 211 + 1 + 1 + 1 + 1 + 321 + 130 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2111111321131) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 67360944 + ... + 67392276.

It is an arithmetic number, because the mean of its divisors is an integer number (18015107292).

Almost surely, 2^{2111111321130} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2111111321130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3458900600064).

2111111321130 is an abundant number, since it is smaller than the sum of its proper divisors (4806689878998).

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

2111111321130 is a wasteful number, since it uses less digits than its factorization.

2111111321130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31612 (or 31600 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 2111111321130 its reverse (311231111112), we get a palindrome (2422342432242).

The spelling of 2111111321130 in words is "two trillion, one hundred eleven billion, one hundred eleven million, three hundred twenty-one thousand, one hundred thirty".