20311160244 has 96 divisors (see below), whose sum is σ = 51971673600. Its totient is φ = 6145198080.

The previous prime is 20311160239. The next prime is 20311160269. The reversal of 20311160244 is 44206111302.

It is a super-2 number, since 2×20311160244² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 7281202 + ... + 7283990.

It is an arithmetic number, because the mean of its divisors is an integer number (541371600).

Almost surely, 2^20311160244 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20311160244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25985836800).

20311160244 is an abundant number, since it is smaller than the sum of its proper divisors (31660513356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20311160244 is a wasteful number, since it uses less digits than its factorization.

20311160244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4073 (or 4071 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 20311160244 its reverse (44206111302), we get a palindrome (64517271546).

The spelling of 20311160244 in words is "twenty billion, three hundred eleven million, one hundred sixty thousand, two hundred forty-four".