100031113210321 has 4 divisors (see below), whose sum is σ = 100031326972992. Its totient is φ = 100030899447652.

The previous prime is 100031113210199. The next prime is 100031113210331. The reversal of 100031113210321 is 123012311130001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100031113210321 is a prime.

It is a super-2 number, since 2×100031113210321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100031113210331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106177861 + ... + 107115826.

It is an arithmetic number, because the mean of its divisors is an integer number (25007831743248).

Almost surely, 2^{100031113210321} is an apocalyptic number.

It is an amenable number.

100031113210321 is a deficient number, since it is larger than the sum of its proper divisors (213762671).

100031113210321 is an equidigital number, since it uses as much as digits as its factorization.

100031113210321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213762670.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 100031113210321 its reverse (123012311130001), we get a palindrome (223043424340322).

The spelling of 100031113210321 in words is "one hundred trillion, thirty-one billion, one hundred thirteen million, two hundred ten thousand, three hundred twenty-one".