104122731031 has 4 divisors (see below), whose sum is σ = 113588433864. Its totient is φ = 94657028200.

The previous prime is 104122731001. The next prime is 104122731059. The reversal of 104122731031 is 130137221401.

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 104122731031 - 2⁷ = 104122730903 is a prime.

It is a super-2 number, since 2×104122731031² (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 = 104122730987 and 104122731005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104122731001) 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, 4732851400 + ... + 4732851421.

It is an arithmetic number, because the mean of its divisors is an integer number (28397108466).

Almost surely, 2^104122731031 is an apocalyptic number.

104122731031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

104122731031 is a deficient number, since it is larger than the sum of its proper divisors (9465702833).

104122731031 is an equidigital number, since it uses as much as digits as its factorization.

104122731031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9465702832.

The product of its (nonzero) digits is 1008, while the sum is 25.

Adding to 104122731031 its reverse (130137221401), we get a palindrome (234259952432).

The spelling of 104122731031 in words is "one hundred four billion, one hundred twenty-two million, seven hundred thirty-one thousand, thirty-one".