20012152311200 has 72 divisors (see below), whose sum is σ = 55833904963872. Its totient is φ = 6861309361920.

The previous prime is 20012152311169. The next prime is 20012152311293. The reversal of 20012152311200 is 211325121002.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 1786793714 + ... + 1786804913.

It is an arithmetic number, because the mean of its divisors is an integer number (775470902276).

Almost surely, 2^{20012152311200} is an apocalyptic number.

20012152311200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012152311200 is an abundant number, since it is smaller than the sum of its proper divisors (35821752652672).

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

20012152311200 is a wasteful number, since it uses less digits than its factorization.

20012152311200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3573598654 (or 3573598641 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 20012152311200 its reverse (211325121002), we get a palindrome (20223477432202).

The spelling of 20012152311200 in words is "twenty trillion, twelve billion, one hundred fifty-two million, three hundred eleven thousand, two hundred".