2145111131330 has 32 divisors (see below), whose sum is σ = 3875772146688. Its totient is φ = 854806737600.

The previous prime is 2145111131299. The next prime is 2145111131341. The reversal of 2145111131330 is 331311115412.

It is a self number, because there is not a number n which added to its sum of digits gives 2145111131330.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42416039 + ... + 42466581.

It is an arithmetic number, because the mean of its divisors is an integer number (121117879584).

Almost surely, 2^{2145111131330} is an apocalyptic number.

2145111131330 is a deficient number, since it is larger than the sum of its proper divisors (1730661015358).

2145111131330 is a wasteful number, since it uses less digits than its factorization.

2145111131330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66482.

The product of its (nonzero) digits is 1080, while the sum is 26.

Adding to 2145111131330 its reverse (331311115412), we get a palindrome (2476422246742).

The spelling of 2145111131330 in words is "two trillion, one hundred forty-five billion, one hundred eleven million, one hundred thirty-one thousand, three hundred thirty".