2321320220100 has 108 divisors (see below), whose sum is σ = 8315484899904. Its totient is φ = 530587477440.

The previous prime is 2321320220069. The next prime is 2321320220147. The reversal of 2321320220100 is 10220231232.

2321320220100 is a `hidden beast` number, since 2 + 3 + 21 + 320 + 220 + 100 = 666.

It is a super-2 number, since 2×2321320220100² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 184225464 + ... + 184238063.

Almost surely, 2^{2321320220100} is an apocalyptic number.

2321320220100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2321320220100 is an abundant number, since it is smaller than the sum of its proper divisors (5994164679804).

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

2321320220100 is a wasteful number, since it uses less digits than its factorization.

2321320220100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368463554 (or 368463544 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 2321320220100 its reverse (10220231232), we get a palindrome (2331540451332).

The spelling of 2321320220100 in words is "two trillion, three hundred twenty-one billion, three hundred twenty million, two hundred twenty thousand, one hundred".