31100301421 has 12 divisors (see below), whose sum is σ = 36584400060. Its totient is φ = 26357876160.

The previous prime is 31100301409. The next prime is 31100301431. The reversal of 31100301421 is 12410300113.

It can be written as a sum of positive squares in 2 ways, for example, as 5021281321 + 26079020100 = 70861^2 + 161490^2 .

It is not a de Polignac number, because 31100301421 - 2⁷ = 31100301293 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31100301395 and 31100301404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31100301431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3561370 + ... + 3570091.

It is an arithmetic number, because the mean of its divisors is an integer number (3048700005).

Almost surely, 2^31100301421 is an apocalyptic number.

It is an amenable number.

31100301421 is a deficient number, since it is larger than the sum of its proper divisors (5484098639).

31100301421 is an equidigital number, since it uses as much as digits as its factorization.

31100301421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7131564 (or 7131557 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 31100301421 its reverse (12410300113), we get a palindrome (43510601534).

The spelling of 31100301421 in words is "thirty-one billion, one hundred million, three hundred one thousand, four hundred twenty-one".