100401231131 has 4 divisors (see below), whose sum is σ = 100536361392. Its totient is φ = 100266100872.

The previous prime is 100401231109. The next prime is 100401231143. The reversal of 100401231131 is 131132104001.

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 100401231131 - 2⁶ = 100401231067 is a prime.

It is a super-2 number, since 2×100401231131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100401231191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67564016 + ... + 67565501.

It is an arithmetic number, because the mean of its divisors is an integer number (25134090348).

Almost surely, 2^100401231131 is an apocalyptic number.

100401231131 is a deficient number, since it is larger than the sum of its proper divisors (135130261).

100401231131 is an equidigital number, since it uses as much as digits as its factorization.

100401231131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135130260.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 100401231131 its reverse (131132104001), we get a palindrome (231533335132).

The spelling of 100401231131 in words is "one hundred billion, four hundred one million, two hundred thirty-one thousand, one hundred thirty-one".