20830375115 has 16 divisors (see below), whose sum is σ = 27652928256. Its totient is φ = 14935989600.

The previous prime is 20830375091. The next prime is 20830375123. The reversal of 20830375115 is 51157303802.

It is not a de Polignac number, because 20830375115 - 2¹⁶ = 20830309579 is a prime.

It is a super-2 number, since 2×20830375115² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

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, 2663237 + ... + 2671046.

It is an arithmetic number, because the mean of its divisors is an integer number (1728308016).

Almost surely, 2^20830375115 is an apocalyptic number.

20830375115 is a deficient number, since it is larger than the sum of its proper divisors (6822553141).

20830375115 is a wasteful number, since it uses less digits than its factorization.

20830375115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5334370.

The product of its (nonzero) digits is 25200, while the sum is 35.

Adding to 20830375115 its reverse (51157303802), we get a palindrome (71987678917).

The spelling of 20830375115 in words is "twenty billion, eight hundred thirty million, three hundred seventy-five thousand, one hundred fifteen".