100231321223220 has 96 divisors (see below), whose sum is σ = 306359549153280. Its totient is φ = 24282754296960.

The previous prime is 100231321223213. The next prime is 100231321223263. The reversal of 100231321223220 is 22322123132001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48192780 + ... + 50229539.

It is an arithmetic number, because the mean of its divisors is an integer number (3191245303680).

Almost surely, 2^{100231321223220} is an apocalyptic number.

100231321223220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100231321223220 is an abundant number, since it is smaller than the sum of its proper divisors (206128227930060).

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

100231321223220 is a wasteful number, since it uses less digits than its factorization.

100231321223220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98423885 (or 98423883 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 100231321223220 its reverse (22322123132001), we get a palindrome (122553444355221).

The spelling of 100231321223220 in words is "one hundred trillion, two hundred thirty-one billion, three hundred twenty-one million, two hundred twenty-three thousand, two hundred twenty".