20412231099 has 16 divisors (see below), whose sum is σ = 29326977792. Its totient is φ = 12554041248.

The previous prime is 20412231097. The next prime is 20412231113. The reversal of 20412231099 is 99013221402.

It is not a de Polignac number, because 20412231099 - 2¹ = 20412231097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20412231097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84687 + ... + 219080.

It is an arithmetic number, because the mean of its divisors is an integer number (1832936112).

Almost surely, 2^20412231099 is an apocalyptic number.

20412231099 is a deficient number, since it is larger than the sum of its proper divisors (8914746693).

20412231099 is a wasteful number, since it uses less digits than its factorization.

20412231099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305506.

The product of its (nonzero) digits is 7776, while the sum is 33.

The spelling of 20412231099 in words is "twenty billion, four hundred twelve million, two hundred thirty-one thousand, ninety-nine".