100212302031 has 4 divisors (see below), whose sum is σ = 133616402712. Its totient is φ = 66808201352.

The previous prime is 100212302027. The next prime is 100212302051. The reversal of 100212302031 is 130203212001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130203212001 = 3 ⋅43401070667.

It is a cyclic number.

It is not a de Polignac number, because 100212302031 - 2² = 100212302027 is a prime.

It is a super-2 number, since 2×100212302031² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100212302031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100212302011) 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, 16702050336 + ... + 16702050341.

It is an arithmetic number, because the mean of its divisors is an integer number (33404100678).

Almost surely, 2^100212302031 is an apocalyptic number.

100212302031 is a deficient number, since it is larger than the sum of its proper divisors (33404100681).

100212302031 is an equidigital number, since it uses as much as digits as its factorization.

100212302031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33404100680.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 100212302031 its reverse (130203212001), we get a palindrome (230415514032).

The spelling of 100212302031 in words is "one hundred billion, two hundred twelve million, three hundred two thousand, thirty-one".