100342431321 has 16 divisors (see below), whose sum is σ = 146075643648. Its totient is φ = 60762338000.

The previous prime is 100342431307. The next prime is 100342431347. The reversal of 100342431321 is 123134243001.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 100342431321 - 2⁵ = 100342431289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100342431291 and 100342431300.

It is not an unprimeable number, because it can be changed into a prime (100342431391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1241655 + ... + 1319996.

It is an arithmetic number, because the mean of its divisors is an integer number (9129727728).

Almost surely, 2^100342431321 is an apocalyptic number.

100342431321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100342431321 is a deficient number, since it is larger than the sum of its proper divisors (45733212327).

100342431321 is a wasteful number, since it uses less digits than its factorization.

100342431321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2562852.

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

Adding to 100342431321 its reverse (123134243001), we get a palindrome (223476674322).

The spelling of 100342431321 in words is "one hundred billion, three hundred forty-two million, four hundred thirty-one thousand, three hundred twenty-one".