31300002122 has 16 divisors (see below), whose sum is σ = 48609118440. Its totient is φ = 15097854912.

The previous prime is 31300002121. The next prime is 31300002133. The reversal of 31300002122 is 22120000313.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 28879263721 + 2420738401 = 169939^2 + 49201^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31300002097 and 31300002106.

It is not an unprimeable number, because it can be changed into a prime (31300002121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152093 + ... + 292800.

Almost surely, 2^31300002122 is an apocalyptic number.

31300002122 is a deficient number, since it is larger than the sum of its proper divisors (17309116318).

31300002122 is a wasteful number, since it uses less digits than its factorization.

31300002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446137.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 31300002122 its reverse (22120000313), we get a palindrome (53420002435).

The spelling of 31300002122 in words is "thirty-one billion, three hundred million, two thousand, one hundred twenty-two".