100311443431 has 4 divisors (see below), whose sum is σ = 106212116592. Its totient is φ = 94410770272.

The previous prime is 100311443423. The next prime is 100311443437. The reversal of 100311443431 is 134344113001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100311443431 - 2³ = 100311443423 is a prime.

It is a super-2 number, since 2×100311443431² (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 = 100311443396 and 100311443405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100311443437) 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, 2950336555 + ... + 2950336588.

It is an arithmetic number, because the mean of its divisors is an integer number (26553029148).

Almost surely, 2^100311443431 is an apocalyptic number.

100311443431 is a deficient number, since it is larger than the sum of its proper divisors (5900673161).

100311443431 is an equidigital number, since it uses as much as digits as its factorization.

100311443431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5900673160.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 100311443431 its reverse (134344113001), we get a palindrome (234655556432).

The spelling of 100311443431 in words is "one hundred billion, three hundred eleven million, four hundred forty-three thousand, four hundred thirty-one".