20243031099 has 16 divisors (see below), whose sum is σ = 27515980800. Its totient is φ = 13233014496.

The previous prime is 20243031097. The next prime is 20243031199. The reversal of 20243031099 is 99013034202.

It is not a de Polignac number, because 20243031099 - 2¹ = 20243031097 is a prime.

It is a super-2 number, since 2×20243031099² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20243031097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243492 + ... + 315870.

It is an arithmetic number, because the mean of its divisors is an integer number (1719748800).

Almost surely, 2^20243031099 is an apocalyptic number.

20243031099 is a deficient number, since it is larger than the sum of its proper divisors (7272949701).

20243031099 is a wasteful number, since it uses less digits than its factorization.

20243031099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74194.

The product of its (nonzero) digits is 11664, while the sum is 33.

The spelling of 20243031099 in words is "twenty billion, two hundred forty-three million, thirty-one thousand, ninety-nine".