20120312233120 has 48 divisors (see below), whose sum is σ = 51855531987168. Its totient is φ = 7316477175040.

The previous prime is 20120312233093. The next prime is 20120312233159. The reversal of 20120312233120 is 2133221302102.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 20120312233091 and 20120312233100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5715996034 + ... + 5715999553.

It is an arithmetic number, because the mean of its divisors is an integer number (1080323583066).

Almost surely, 2^{20120312233120} is an apocalyptic number.

20120312233120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20120312233120 is an abundant number, since it is smaller than the sum of its proper divisors (31735219754048).

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

20120312233120 is a wasteful number, since it uses less digits than its factorization.

20120312233120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11431995613 (or 11431995605 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20120312233120 its reverse (2133221302102), we get a palindrome (22253533535222).

The spelling of 20120312233120 in words is "twenty trillion, one hundred twenty billion, three hundred twelve million, two hundred thirty-three thousand, one hundred twenty".