20331311303400 has 48 divisors (see below), whose sum is σ = 63027065042400. Its totient is φ = 5421683014080.

The previous prime is 20331311303389. The next prime is 20331311303447. The reversal of 20331311303400 is 430311313302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 16942758820 + ... + 16942760019.

It is an arithmetic number, because the mean of its divisors is an integer number (1313063855050).

Almost surely, 2^{20331311303400} is an apocalyptic number.

20331311303400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20331311303400 is an abundant number, since it is smaller than the sum of its proper divisors (42695753739000).

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

20331311303400 is a wasteful number, since it uses less digits than its factorization.

20331311303400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33885518858 (or 33885518849 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 20331311303400 its reverse (430311313302), we get a palindrome (20761622616702).

The spelling of 20331311303400 in words is "twenty trillion, three hundred thirty-one billion, three hundred eleven million, three hundred three thousand, four hundred".