100244431031 has 4 divisors (see below), whose sum is σ = 100245603000. Its totient is φ = 100243259064.

The previous prime is 100244430971. The next prime is 100244431033. The reversal of 100244431031 is 130134442001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130134442001 = 12923 ⋅10069987.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100244431031 is a prime.

It is a super-2 number, since 2×100244431031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100244430988 and 100244431006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100244431033) 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, 446636 + ... + 632433.

It is an arithmetic number, because the mean of its divisors is an integer number (25061400750).

Almost surely, 2^100244431031 is an apocalyptic number.

100244431031 is a deficient number, since it is larger than the sum of its proper divisors (1171969).

100244431031 is an equidigital number, since it uses as much as digits as its factorization.

100244431031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171968.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 100244431031 its reverse (130134442001), we get a palindrome (230378873032).

The spelling of 100244431031 in words is "one hundred billion, two hundred forty-four million, four hundred thirty-one thousand, thirty-one".