31300021141 has 8 divisors (see below), whose sum is σ = 31330719000. Its totient is φ = 31269342720.

The previous prime is 31300021133. The next prime is 31300021153. The reversal of 31300021141 is 14112000313.

It can be written as a sum of positive squares in 4 ways, for example, as 10455880516 + 20844140625 = 102254^2 + 144375^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31300021141 - 2³ = 31300021133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31306021141) 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 7 ways as a sum of consecutive naturals, for example, 7728285 + ... + 7732333.

It is an arithmetic number, because the mean of its divisors is an integer number (3916339875).

Almost surely, 2^31300021141 is an apocalyptic number.

It is an amenable number.

31300021141 is a deficient number, since it is larger than the sum of its proper divisors (30697859).

31300021141 is a wasteful number, since it uses less digits than its factorization.

31300021141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9719.

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

Adding to 31300021141 its reverse (14112000313), we get a palindrome (45412021454).

The spelling of 31300021141 in words is "thirty-one billion, three hundred million, twenty-one thousand, one hundred forty-one".