100320430331 has 16 divisors (see below), whose sum is σ = 115228924800. Its totient is φ = 86379048000.

The previous prime is 100320430321. The next prime is 100320430337. The reversal of 100320430331 is 133034023001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100320430331 is a prime.

It is a super-2 number, since 2×100320430331² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100320430337) 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, 820880 + ... + 935138.

It is an arithmetic number, because the mean of its divisors is an integer number (7201807800).

Almost surely, 2^100320430331 is an apocalyptic number.

100320430331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

100320430331 is a deficient number, since it is larger than the sum of its proper divisors (14908494469).

100320430331 is a wasteful number, since it uses less digits than its factorization.

100320430331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118490.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 100320430331 its reverse (133034023001), we get a palindrome (233354453332).

The spelling of 100320430331 in words is "one hundred billion, three hundred twenty million, four hundred thirty thousand, three hundred thirty-one".