20530240111450 has 24 divisors (see below), whose sum is σ = 38186369790912. Its totient is φ = 8212069553520.

The previous prime is 20530240111411. The next prime is 20530240111501. The reversal of 20530240111450 is 5411104203502.

It is a super-2 number, since 2×20530240111450² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24331537 + ... + 25161163.

It is an arithmetic number, because the mean of its divisors is an integer number (1591098741288).

Almost surely, 2^{20530240111450} is an apocalyptic number.

20530240111450 is a deficient number, since it is larger than the sum of its proper divisors (17656129679462).

20530240111450 is a wasteful number, since it uses less digits than its factorization.

20530240111450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1324566 (or 1324561 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 20530240111450 its reverse (5411104203502), we get a palindrome (25941344314952).

The spelling of 20530240111450 in words is "twenty trillion, five hundred thirty billion, two hundred forty million, one hundred eleven thousand, four hundred fifty".