2111143315530 has 16 divisors (see below), whose sum is σ = 5066743957344. Its totient is φ = 562971550800.

The previous prime is 2111143315511. The next prime is 2111143315531. The reversal of 2111143315530 is 355133411112.

It is a super-2 number, since 2×2111143315530² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 70371443851 = 2111143315530 / (2 + 1 + 1 + 1 + 1 + 4 + 3 + 3 + 1 + 5 + 5 + 3 + 0).

It is not an unprimeable number, because it can be changed into a prime (2111143315531) 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, 35185721896 + ... + 35185721955.

It is an arithmetic number, because the mean of its divisors is an integer number (316671497334).

Almost surely, 2^{2111143315530} is an apocalyptic number.

2111143315530 is an abundant number, since it is smaller than the sum of its proper divisors (2955600641814).

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

2111143315530 is a wasteful number, since it uses less digits than its factorization.

2111143315530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70371443861.

The product of its (nonzero) digits is 5400, while the sum is 30.

Adding to 2111143315530 its reverse (355133411112), we get a palindrome (2466276726642).

The spelling of 2111143315530 in words is "two trillion, one hundred eleven billion, one hundred forty-three million, three hundred fifteen thousand, five hundred thirty".